Tag Archives: jewels

A few of my favorite glitz from the SAG Awards 2023

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This year’s big winner of the evening was the family adventure Everything Everywhere All at Once whose leading actress Michelle Yeoh won the award for Female Actor in a Leading Role.

Just as she did for the Bafta, she dazzles us once again with spectacular pieces by Moussaieff including a yellow diamond and diamond ring, set with a 21.02 carat Fancy Vivid Yellow diamond between pear-shaped diamond shoulders.

To put this into perspective, a 3.03 carats Fancy Vivid Yellow diamond ring mounted in platinum is currently up for sale at Sotheby’s online for USD 195,000. I leave it to your imagination to work out the cost of the above 21 carats diamond!

She paired the ring with a pair of chandelier yellow diamond and diamond earrings.

The earrings are set with 24.70 carats of pear shaped Fancy Intense Yellow diamonds, and 11.08 carats of pear-shaped and brilliant-cut white diamonds.

The outfit was finished with a Richard Mille wristwatch for which she is also a brand ambassador.

Fellow actor Ke Huy Quan, who won the Outstanding Performance by Male Actor in a Supporting role category and made history by being the first Asian actor to win this SAG award, looked dashing with a De Beers brooch from The Alchemist of Light high jewellery collection, set with a 2.70 carat oval Fancy Grey diamond within a blue aluminium surround.

The beautiful collection by De Beers include the Ascending Shadows Small Earrings.

Set with two central diamonds each weighing 1.01 carats and 1.02 carats, E, VS2, within a surround of diamond, the total weight adding to 6.30 carats and mounted in 18 carat white gold, 18 carat rose gold, titanium & aluminium. These currently retail for £94,500. Similar designs of the collection include a headband, necklace and cocktail ring.

Other red carpet nominees and actors wearing De Beers exceptional pieces included Angela Bassett, Li Jun Li, Hannah Einbinder, and Katherine Waterston. Cara Delevingne dazzled in a “few” De Beers pieces.

These included: The Alchemist of Light ‘Midnight Aura’ Necklace set in 18 carat white gold with 74.73 carats of diamonds, The Alchemist of Light ‘Midnight Aura’ Earrings set in 18 carat black rhodium plated white gold with 9.58 carats of diamonds, a diamond line bracelet set in platinum with 17.03 carats of diamonds, Volute Ring set in platinum with 6.80 carats of diamonds, Adonis Rose Pear
Diamond Ring set in platinum with 5.40 carats of diamonds, a diamond eternity band set in platinum with 6.14 carats of diamonds, and a round brilliant diamond eternity band set in platinum with 7.15 carats of diamonds.

The Volute diamond ring can be yours for USD 218,000.

One of my favourite red carpet actresses is Zendaya. She is faultless! And this year’s 29th ceremony of the SAG awards was no exception. Nominated for Best Female Actor in a Drama Series for her starring role as Rue in HBO’s Euphoria, she paired her pastel pink Valentino Haute Couture gown with a Bvlgari bib necklace set with aquamarine, tanzanite and morganite.

Later that night, to present an award, she changed outfits and wore a Bvlgari chocker centrally-set with an oval -shaped aquamarine.

I always say that a red carpet is not quite complete without a Bvlgari Serpenti necklace. Emily Blunt’s Oscar de la Renta gown was styled with a pink gold choker with diamonds and rubies from Bvlgari’s
new collection celebrating Serpenti’s 75th anniversary, along with pavé diamond earrings and a platinum ring.

A similar Bvlgari Serpenti diamond and ruby necklace sold at Sotheby’s in July 2022 for HKD 1,625,000 (approximately £171,375).

 

One can have its own Bvlgari Serpenti collection with this Serpenti Seduttori ring for £9,000 or Serpenti necklace for £20,900.

And who knows, perhaps draped in Bvlgari, the SAG awards might have the pleasure of having you walk down its red carpet next year…

Helen’s guide for that special Valentine’s day gift

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Valentine’s is a day that is dedicated to love. It originated as a Christian feast day honouring Saint Valentine, a martyr who lived in the 3rd century AD. It is now a day for people to express their love and appreciation for their significant others, friends, and family.

Some people choose to exchange gifts of jewellery and what better gift than one that you can see your loved one wear and can make a great investment for the future. The gift that keeps on giving!

Here is Helen’s guide and suggestions on the perfect gift for Valentine’s Day.

Firstly, let’s look at the things to consider when choosing jewellery:

A good thing to consider is the rarity of a piece. Antique or vintage jewellery can increase in value due to its rarity. Jewellery set with fine quality gemstones can also command very high prices at retail and auction.

Rubies and pink sapphires make an excellent choice for valentine’s day.

The Italian Jeweller Pomellato have some beautifully designed gem-set jewellery that sells very well at auction. This beautiful bracelet was estimated £4000 – £6000 at Bonhams in 2022.

Below is an example of a 4.02ct ruby that sold at Sotheby’s in 2021 for $63,000. The excellent quality stone was accompanied by a report from GRS (Gem Research Swiss lab) stating that the ruby was of Mozambican origin with no indications of heating.

As well as rarity, the quality and craftsmanship of a piece of jewellery can make a huge difference to its value. High-quality jewellery made with fine materials and gemstones can also increase in value over time.

Another important factor is market demand. Diamond jewellery is always in high demand and popular both at retail and auction. Diamond single stone rings remain the most popular choice for an engagement ring. Other examples of popular diamond jewellery include earrings, pendants, and bracelets.

Here is an example of a stunning diamond line bracelet by De Beers retailing for £92,500. De Beers are famous for their exquisite selection of diamond jewellery.

Jewellery made by some well-known brands and designers, such as Cartier, Van Cleef & Arpels and Tiffany & Co. can make great investments and they also have many romantically themed designs perfect for Valentine’s Day.

Pieces from these brands often increase in value over time due to their popularity.

Here is an example of a Cartier Love bangle that went through auction in 2005 and sold for £600 including premium. This bangle in today’s market would sell for more than £4000. That’s a huge increase in value.

Bonhams 2005 Cartier love bangle sells for £600.

Bonhams 2022 Cartier love bangle sells for £4080.

Diamonds also make a great investment and remain a classic choice for Valentine’s Day.

This is a colour D, IF clarity diamond is valued at over £100,000.

Diamonds have been traded since the 4th century, they have stood the test of time and this longevity is a testament to their strength, rarity and beauty.

In many ways their value is protected by rising mining, manufacturing, shipping, and insurance costs involved in bringing a diamond to market and this helps to maintain their value.

As Marilyn Monroe sang… “Diamonds are a girl’s best friend.”

The best way to select a diamond is to familiarise yourself with their grading system. During the middle of the 20th century The Gemmological Institute of America (GIA) created a grading system for diamonds. It is now recognised globally as the universal method for assessing the quality of a stone.

It can be extremely helpful as it tells you the quality of what you are purchasing and its these specific details that establish a diamonds value.

The system focuses on the Four C’s, which stand for Colour, Clarity, Cut and Carat.

Colour

When it comes to colour in diamonds, it’s more about what you can’t see. When grading colour, we are assessing the absence of colour, a measurement of the degree of colourlessness in a stone.

It’s measured from D (perfectly white) to M (Yellow) see the below scale.

The most valuable on the scale are pure white, D colour.

Clarity

The GIA Diamond Clarity Scale has six categories

  • Flawless (FL) No inclusions and no blemishes visible under 10x magnification
  • Internally Flawless (IF) No inclusions visible under 10x magnification
  • Very, Very Slightly Included (VVS1 and VVS2) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
  • Very Slightly Included (VS1 and VS2) Inclusions are observed with effort under 10x magnification, but can be characterized as minor
  • Slightly Included (SI1 and SI2) Inclusions are noticeable under 10x magnification
  • Included (I1, I2, and I3) Inclusions are obvious under 10x magnification which may affect transparency and brilliance

Here is a visual example of the clarity scale

The most valuable having a clarity grade of flawless, most commercial diamonds have a clarity of VS / SI.

Here is an example of a colour D, clarity IF diamond selling for £500,000.

Carat

A diamonds weight is represented by carat weight. All else being equal, diamond price increases with diamond carat weight because larger diamonds are rarer and more desirable. The increase in price between a 0.99ct diamond and a 1.00ct diamond is huge even though there is a very minute size difference, this is because commercially a 1.00ct diamond is more desirable.

Cut

A diamond with optimum proportions and cut will display the best amounts of fire and brightness, that lovely effect that makes diamonds so unique and beautiful. You will often see the grade of a cut ranging from excellent to poor recorded on certificates.

Cartier, Van Cleef & Arpels and Tiffany & Co. select the best quality diamonds for their jewellery.

Designer Jewellery

Cartier

Cartier is a very well-known luxury jewellery brand with a long history of creating luxurious and elegant jewellery, here are some of their most popular designs.

The Love Collection

The Cartier Love Collection is a classic design that has become synonymous with the brand. It’s simple, yet elegant with designs available in gold and platinum and some set with diamonds and gemstones.

Both diamond love bracelets retail for £40,700, the rose gold version would work particularly well for Valentine’s Day.

This plain rose gold version retails for £6350.

The Trinity Collection

The Cartier Trinity Collection is also a very popular choice. Made up of three bands of yellow, white, and rose gold, the pieces are said to be a symbol of love, friendship, and loyalty. A great message to send on Valentine’s Day.

They are available in a variety of styles with some set with diamonds.

Here is one of the more commonly seen versions with diamonds set to one of the bands.

This diamond set example retails for £6,150.

This diamond set version retails for £32,400 and would make a lovely gift with its use of rose, yellow and white gold.

There are also pendants, earrings, and bracelets available in the same design.

A very rare version is a bangle set with white, pink, and yellow diamonds, which retails for £250,000!

Cartier are not only known for their jewellery but also have a great selection of watches. The Tank Française watch is a classic design that was first introduced in 1917. It has since become one of the brand’s most iconic watches. These watches are very popular and sell well, they are perfect for someone looking for an alternative to jewellery on Valentine’s Day. Cartier also have a great selection of gentleman’s watches.

This gold and diamond Tank Française retails at Cartier for £26,300.

This stainless-steel version retails for £4200.

Van Cleef & Arpels

Another famous jewellery brand is Van Cleef & Arpels (VCA). Two models which are hugely popular and collectable are the ‘Alhambra’ and ‘Ballerina’.

The iconic Alhambra design has clovershaped motifs often set with various gemstones. They come in various designs such as long chains, bracelets, rings, and earrings.

The red gem Carnelian is set in this Alhambra VCA pendant and retails for £1490.

The malachite version of the Alhambra design is now very rare and no longer produced by VCA, therefore the secondary market has overtaken the retail price when the piece was still available.

This one sold for £28,000 at Christies in 2018. Another iconic design by VCA is the Ballerina collection which features delicate, dancing ballerina-inspired designs. They were inspired by a collaboration with Benjamin Millepied, the new dance director at the Paris Opéra, and his wife, the actress Natalie Portman.

These designs are no longer produced by VCA and make great money when they come up at auction.

The above turquoise, ruby and diamond Ballerina brooch by Van Cleef & Arperls sold for $218,000 in 2017 at Christies New York.

This diamond, ruby, sapphire, and emerald version sold for £6000 at auction in 2010. They would make a great gift if a loved one who has a passion for dancing, or perhaps you met on a wedding dance floor!

Tiffany & Co.

We couldn’t talk about great jewellery designers without mentioning Tiffany & Co. They have released many iconic designs over the years and here are some examples of their most popular.

The “Return to Tiffany” Collection features classic and timeless designs, such as heart lockets and charm bracelets engraved with ‘Return to Tiffany & Co. New York’ its most famous store.

Tiffany & Co. are particularly well-known for their diamond engagement rings; in fact, the “Tiffany Setting” ring is iconic. Rings can sell for hundreds of thousands of pounds depending on the quality and size of the diamond. Perhaps the epitome of romantic jewellery, a Tiffany engagement ring!

Another great example of Tiffany & Co jewellery is designed by Jean Schlumberger. He was one of the 20th century’s most gifted artists and his designs have been described as deeply imaginative, as well as being extremely desirable.

This beautiful enamel bracelet retails for just under £50,000.

Schlumberger’s designs at Tiffany & Co. were known for their whimsical interpretations of natural forms. He was especially inspired by sea creatures and other animals. Now he is most known for his enamel bangles and his diamond kisses rings. These are extremely popular at retail and at auction.

The kisses ring retails for £11,200.

Schlumberger began working for Tiffany & Co in 1956 and his original designs can sell for very high prices at auction.

This bird on a rock brooch set with a large Citrine weighing 61.20ct sold for £37,000 at auction.

Antique Jewellery

Art Deco

Antique jewellery can also make a great investment and is often romantically themed.

Art Deco jewellery is characterised by its geometric shapes and bold use of colour, making it a popular and romantic choice for special occasions.

Engagement rings from the Art Deco period are very popular, the target design was given as a token of love because it represented the bullseye shot by cupid’s arrow.

This diamond and ruby Art Deco target ring retails for £46,000.

Art Deco jewellery also sells very well at auction.

Victorian Jewellery

Queen Victorian reigned from 1839 to 1901 and the styles of the Victorian period are very intimately connected with the different stages in her life.

In 1840 Queen Victoria married the love of her life Prince Albert and this had a huge influence on jewellery styles. The theme for jewellery was love with motifs of hands, hearts, crosses, and knots to represent an eternal bond between two people. Snakes also featured, symbolising promise and being in love forever.

This diamond heart retails for £1500 and is set with 0.50ct of rose-cut diamonds a cut often used in the Victorian period.

This Victorian Lovers knot ring is another example of the romantic jewellery from the Victorian period. This retails for £1300.

This example of a ‘forget me not’ ring is set with an onyx that has been beautifully decorated with bright cushion-cut diamonds in the shape of a pansy. The pansy represents the message ‘pensée à moi’ which translates to ‘think of me’.

The theme of romance remained abundant throughout Victoria’s reign with lockets becoming increasingly popular. Wearers enjoyed holding pictures of loved ones inside.

Valentine’s Day is a special time to show your love and a piece of jewellery can be the perfect way to do so.

So, why not make this Valentine’s Day extra special with a beautiful and meaningful gift that’s lasts a lifetime and says I love you.

But remember to add to your insurance policy and get an up-to-date valuation next Valentine’s Day as the retail replacement value may have increased!

Hocus pocus… Focus on… Amber

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To kick off this mini series of Halloween gems, amber is the chosen first. What could be more spooky than trapped insect containing deadly bacteria…

Prized for its deep rich and warm orange hue, amber is an organic gem, meaning that it is created from living or once living organism, it is fossilized tree resin dating tens of millions of years. It is composed of carbon, oxygen and hydrogen. Nicknamed “the gold of the North”, it is most commonly found on Northern Europe’s beaches, washed away with the ocean tides. It can also be dug from the ground and deposits have also been found in the Dominican Republic, Myanmar (Burma) and Mexico.

There is a distinction to be made between amber and copal amber. The latter refers to amber which fossilized less than a million years ago. But who’s counting!! It is also fossilized tree resin and is formed in the same manner. One cannot differentiate between the two using a magnifying glass, but rather by using “granny’s old tricks”. Some say that rubbing copal amber on the heel of your hand will emit a smell, others suggest a drop of acetone or even gasoline to determine copal from mature amber: amber is unaffected by acetone whereas copal softens the material. Either way, probably best to avoid doing at home and damaging one’s precious jewel!

Like with all gems, it takes very specific conditions to create amber. It takes a few million years for resin to harden. Once it has hardened it lays under sediment in an oxygen-free environment. It turns to copal amber. It then takes a few more million years to become more stable with the effects of heat and pressure applied to the copal amber to become amber. Research shows that the deposits found in the Baltic and Dominican Republic came from extended immersion under seawater.

Because of its relative softness – rating at 2/2.5 on the Mohs scale (talc powder rates at 1) – it is not commonly cut with facets, but rather polished into beads or free-form pieces.

Jewellery made of amber tend to be big pieces. The reason for it being the lightness of this gem, making it a perfect candidate to wear around one’s neck without feeling weighed down.

The most prized amber pieces are typically transparent, dark reddish hue. However, amber also comes in white and treatments to enhance colour can modify its appearance totally. Heat treatment and dying are commonly used to enhance amber and one distinct mark to look for are sun spangles. Heating amber can cause fracture-like marks: sun spangles.

Amber is a treasured gem because of the secrets they can unveil. The insects, fauna and animals they have sometimes captured tell a tale.

Inclusions play a huge part in the final value of amber but often if the inclusion is perfect, then it probably is too perfect to be real.

It can be extremely difficult to trust authentic amber with inclusions, such as this piece for sale on eBay for $129,000:

And this perfectly preserved scorpion, also on for sale at eBay for £4.90! :

When in doubt and spending a large amount, always ask for a report from a reputable laboratory.

Man-made or real, amber with insect inclusions make the perfect jewellery piece for trick or treating!

Ametrine

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Ametrine is a form of quartz. It combines both the purple amethyst and the yellow citrine all into one stone, making it somewhat of a unique specimen. To add to this uniqueness, commercial ametrine is only found in Bolivia, and more precisely in the mine of Anahi.

What do we mean by commercial? Stones that are of a particular quality that can be cut and set into jewellery.

The mine was named after a legendary princess of the 1600s who married a Spanish conquistador and was given the mine as dowry. The mine located in a very remote area of Bolivia, was lost for centuries. Research shows that the mine was only rediscovered in the mid-50s, only accessible by plane and small boats.

Ametrine displays the same properties as amethystand citrine. Ametrine rates a 7/10 on the Mohs scale. The Mohs scale of mineral hardness was created by Friedrich Mohs in 1822 and determines the scratch resistance of minerals when scratches by another mineral.

The Mohs scale is used to manufacture everyday objects: your mobile phone’s screen glass is made of a material that scratches at level 6, some at level 7. Ametrine therefore has good toughness and is suitable to be set in jewellery, such as this sapphire and ametrine torsade necklace which sold at auction for $408 (pictured below).

It can be noticed that ametrine is most commonly found in jewellery as a rectangular-cut stone. This cut displays the bi-colour property of the gem, exposing both colours at its best, with the clear demarcation between the yellow and the purple. The most prized ametrine will display fine transparency, a good contrast of colours and an equal balance between the two colours. Though it rates rather high on the Mohs scale, its colour can fade if exposed for long periods of time to too much bright light. If ametrine is worn in jewellery, its wearer should be aware of its possibility to scratch and chip if not cared for properly.

How would one care for its ametrine-set jewels? The best and safest way to clean your jewellery is with good old fashion soap and warm water and not exposing it to high heat. It is preferable not to place the gem in an ultrasonic in case the stone or others in the piece of jewellery have been dyed or fracture filled (the machine’s vibrations will remove the modifications).

Because of its extraordinary features, ametrine is often carved into fantasy-cuts.

An ametrine carving of rooster by Gerd Dreher sold at auction for $12,575. Dreher is a German animal figure carver, the fourth generation of Dr eher in this line of activity. He was born in 1943 in Idar- Oberstein, one of the most important gemstone centres in the world with the finest lapidaries and gem cutters.

This gem-set obelisk / jewellery box by Manfred Wild (pictured top right) remained unsold at $200,000- 250,000. Wild aas born in 1944 in Kirshvayler near Idar-Oberstein. He is the eighth representative of the family dynasty that has been engaged in lapidary art since 1630. Manfred Wild is sometimes called “The 21st century Fabergé”.

Ametrine is used in a wide range of carvings for its intriguing features. It is not uncommon to see jewels set with ametrine but it seems to be slightly underappreciated for what it is: an exceptional wonder of nature who combines two stones into one giving it a delightful play with colours.

I is for iolite

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Iolite is the gemstone variety of cordierite, a magnesium, iron, aluminium and cyclosilicate mineral named after the French geologist Pierre Cordier (1777 – 1861) – founder of the French Geological Society.

As with some other blue gemstones, iolite is known for its pleochroic properties giving it that extra sparkle. Pleochroism is an optical phenomenon in which a substance has different colours when observed at different angles, especially with polarized light.

Iolite occurs in several areas of Africa, including Kenya and central Tanzania. In fact, when Tanzanite was first discovered, geologists thought it was corderite.

Other iolite source countries include India, Brazil, Norway and a large deposit found in 1994 in Madagascar.

The name iolite comes from the Greek word ios, meaning “violet”. It is said that iolite slices were used by Viking navigators to locate the sun on cloudy days, used as some form of compass.

The gem rates at 7 to 7.5/10 on the Mohs hardness scale. The Mohs scale of mineral hardness was created by Friedrich Mohs in 1822 and determines the scratch resistance of minerals when scratches by another mineral.

The Mohs scale is used to manufacture everyday objects: your mobile phone’s screen glass is made of a material that scratches at level 6, some at level 7.

Even though iolite scores rather high on the Mohs scale, it has strong cleavage in one direction, giving it only a fair toughness. Cleavage, caused by weak atomic bonds, is the weakest plane in a gemstone where the gemstone can split.

For this reason, jewellers are a little reluctant to use the gem in jewellery, specially any hard-wearing jewel such as rings for example.

The gem’s most sought after colours are violetish blue to fine blue. But iolite can appear to be greyish, even transparent, or golden and even brown. Depending on where the light hits, differentcolours will show. For this reason, iolite can be confused with colour change sapphires.

Vivid violetish iolites over 5 carats are rare and cannot be treated in the same way as corundum (sapphires) can be. Unlike sapphires, iolite’s chemical composition won’t allow it to be heat treated to intensify its colour. The gem would simply melt at such high temperatures.

Iolite is more often than not faceted, bringing out its unique transparency, free of inclusions.

But it also is a popular choice for cabochons.

In some iolites, a phenomenon called cat’s eye can sometimes be observed. This effect comes out at its best when the gem is cut as a cabochon.

The cat’s eye effect is caused by long, parallel, tubular inclusions. It can also be found in other gems such as sapphire and chrysoberyl.

Though iolite is hardly ever treated, making it a very appealing affordable blue-gem alternative, due to its relative hardness and lack of consistent fine quality supply, it is not found in as many workshops as tanzanites for example. However, iolite is also cut as beads and strung to make beautiful colourful
necklaces.

A wonderful twenty-first wedding anniversary gift…

The one that got away…

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Some time ago, I worked at Bonhams, in the jewellery department. Along with the regular monthly sales held in Knightsbridge were pawnbrokers’ auctions. These were comprised of any jewellery items which had not been redeemed by a customer and needed to be sold on the open market to obtain a fair price and hopefully achieve the best price for it.

The excitement and unpredictability of an auction never fades and each sale kept us on our toes. With pawnbroker sales, that unpredictability was tenfold. Because a pawnbroker client had until the very last moment to redeem his/her item, this meant that items could be withdrawn from an auction at any point prior to the item’s lot number being called out by the auctioneer.

In this case, the one that got away was a magnificent Burmese sapphire ring up for sale in the pawnbroker’s auction. Because pawnbroker auctions are so volatile, there are no catalogues and therefore no image, so I will do my best to convey this ring’s uniqueness.

The sapphire was Burmese. That in itself, is usually indication enough to express the velvety blue hue that sapphires from this part of the world have. Burmese, or Kashmir, sapphires are the most coveted sapphires, considered to have the deepest, intense and rich blue hue. Also known as “Royal Blue”.

Sapphires belong to the same family as rubies, they are corundum. Any coloured corundum, other than red, is called a sapphire. Sapphires differ from rubies in that they have iron as part of their crystal lattice.

Both sapphires and rubies from Burma make for the most exquisite gems. The value in a Burmese sapphire lies in the depth of colour and its dispersion. This is due to minute crystalline inclusions in the stone. Inclusions are small “imperfections” captured in a stone during its formation.

They are like fingerprints, unique to every gem. Below are a few examples of inclusions which are found in sapphires. These help identify where a gem formed, where it was mined and if the gem is natural (as opposed to synthetic, or man-made) and if it has had any treatment to enhance the colour or make inclusions less visible.

Mogok Sapphires

The sapphire in the ring that was up for auction had beautiful silk crystal inclusions and certainly had that “Royal Blue” hue about it. The most famous “Royal Blue” sapphire is probably the one set in Kate Middleton’s sapphire and diamond engagement ring, which belonged to her mother-in-law, the late Princess Diana.

The sapphire weighs 12 carats and is set within a surround of brilliant-cut diamonds. When it was made in 1981, the sapphire ring cost £50,000. Because of the provenance and history of the ring, it has become a priceless piece of jewellery, but one could estimate its current price to be around £500,000.

The world’s most expensive sapphire to sell at auction was sold at Sotheby’s Hong Kong on the 7th October 2015. It weighed 27.68 carats of natural Kashmir origin and made $6,702,564, $242,415 per carat.

It is common for these exceptional sapphires to be accompanied by multiple certificates. If one is to buy a gem, whether for pleasure or investment purposes, it is recommended to buy one with a certificate from a reputable laboratory such as SSEF, GIA, Gubelin.

Don’t be fooled by reports sold with sapphires in markets which simply state that the sapphire is a corundum and details its shape and weight. The stone could well have been man-made in a laboratory in which case a report should state “natural” or “synthetic”.

A gem can also be treated to make it more desirable. It is common practise for sapphires to be heat-treated to bring out more colour in the stone. This should also be mentioned in the report, along with any other enhancements.

Whatever the price of the gem, look for clarity from the seller/dealer/jeweller. If there is transparency and one knows what they are paying for then an honest transaction can proceed. If in doubt, walk away.

I was convinced this sapphire ring was a good investment opportunity. And I would have been right! Sapphires, like rubies and emeralds for example, have seen a net increase in value in the recent years. A similar ring to this superb sapphire ring selling for £25,000, would probably exceed £100,000 at auction in the present climate.

Unfortunately, the sapphire ring was to be pulled from auction moments before the sale was to start and this will forever be The One That Got Away…

G for Garnet

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Garnet is one of the oldest known stones to man. It is the first gem mentioned in the Bible, in Hebrew “nophek”. Indeed the Talmud mentions garnet as being Noah’s only source of light in the Ark in the form of a carbuncle. A carbuncle often refers to ancient red garnet and red stones in general. It was one of four stones to be given by God to King Solomon.

Garnets have also been found to adorm Egyptian mummies, set in necklaces and other jewels. The oldest red garnet bead necklace to have been found is believed to be from 5,000 BC.

In ancient Rome, signet rings with carved garnets were used to stamp the wax that secured important documents.

Because the gem comes in such a wide range of colours, they each have a specific name.

The green garnets are also called tsavorite – named after the Tsavo Game Reserve in Kenya where it was first found by British geologist Campbell R. Bridges in 1967 and named by Harry Platt of Tiffany & Company.

My favourite is perhaps the demantoid garnet for the inclusion it sometimes hold: a horsetail. An inclusion is any material trapped within a stone during formation. In the case of a horsetail, a formation of golden feathery inclusions of chrysolite form in curves resembling the tail of a horse.

Rhodolite is a purplish red variety. Red garnets are also called almandine, pyrope, whereas the more orangey type are called spessartite, almandite and hessonite.

Red garnets were made even more popular in the mid-16th century when a large deposit was discovered in Central Europe. It became one of the most widely traded gems by the late 1800s.

Its current retail cost could reach £38,000 at a specialised antiques jeweller.

Garnet rates a 6.5-7.5/10 on the Mohs scale. The Mohs scale of mineral hardness was created by Friedrich Mohs in 1822 and determines the scratch resistance of minerals when scratched by another mineral.

The Mohs scale is used to manufacture everyday objects: your mobile phone’s screen glass is made of a material that scratches at level 6, some at level 7.

Garnets are stable to light and chemicals which make it a popular choice to set in jewellery. However, it should always be cleaned with care as these gems are sometimes treated to make their appearance even more desirable. The most common treatment for this gem would be fracture filled: if there was a small fracture within the stone, it would be filled with resin or similar composite to fill in the gap and make it look “flawless”. The fillings can usually be spotted with a magnifier and causes a flash of light when positioned at the right angle.

In general, it is safe to assume garnets are untreated. But the economic impact on garnets such as demantoid and tsavorite can dictate whether a stone is treated or not. These two types are garnets are often considered to be the most desirable and usually found in small sizes, so their value goes up significantly with size.

Fabergé Platinum Round Demantoid & Diamond Set Halo Ring selling for £34,200. Mounted in platinum, it has a 2.50cts round demantoid garnet with an SSEF certificate indicating it is Russian, and has been heating to enhance colour, and set with 130 round white diamonds totalling 0.90ct.

If the budget doesn’t stretch that high, other garnets, like rhodolite, are far more common in larger sizes.

It’s easy to understand the appeal of garnet. It offers a multitude of different readily available hues to suit all sorts of budget. The key then when choosing an item with garnet is really to think with what outfit would look best with that colour.

Photomicrography – What it is and how it helps us in determining the value of a gem

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As a valuer and gemmologist I work with gemstones daily. Testing, grading and valuing coloured gems is a personal highlight of my work and it was around 5 years ago when testing a Ceylon sapphire that I first fell in love with photomicrography.

I noticed that viewing the stone under the microscope allowed me to dive deeper into understanding the gem and its value. Since then, what was a routine part of gem testing has become a hobby of mine and I can spend hours viewing one gemstone, trying to capture the perfect photomicrograph. In 2021 I was awarded second place in the Gem-A photography competition for this image.

So what is photomicrography?

Put simply, photomicrography is the photography of objects (gemstones in this case) under a microscope.

To begin, I start by thoroughly cleaning the gemstone or item of jewellery I am working on. It’s important not to have any dirt, grease, or dirt on the stone prior to inspection. I will then spend some time viewing the stone in several positions and angles to allow me to find the perfect inclusion scene for my photography. It’s not uncommon for me to spend 30 minutes just getting the perfect lighting and angle for my image. Sometimes I take several photographs at very slightly different focal lengths and then stack the images together using computer software. This can create a sense of depth within the finished piece. This image is made from a stack of 20 photomicrographs.

What can photomicrography tell us about a gemstone?

Natural or Synthetic?

With a higher level of zoom than a jeweller’s loupe, the microscope allows us a more in-depth view of the gem. This can allow us to determine if a gemstone is natural or synthetic; in this image of a synthetic ruby for example where we can see curved striae indicative of Verneuil Flame Fusion growth. In the case of natural stones, we may find crystal inclusions, colour-zoning and/or fingerprints. The microscope can also be a useful step in identifying synthetic diamonds.

Treatments

We can also detect treatments such as coating, dyeing and fracture filling. This image shows a natural ruby which has been lead-glass filled to improve its apparent clarity. This is an important treatment to be able to identify before carrying out any repairs as the filler is unstable and can degrade severely under high heat, like that of a jeweller’s torch – or by cleaning in ultrasonic or steam cleaners. You will see from the image that the surface of the stone appears ‘crazed’ under magnification. At a higher level of magnification we may also encounter bubbles within the glass, another tell-tale sign of treatment.

Heat treatment is considered a standard treatment within the trade for most gemstones but for sapphires and rubies most importantly, evidence of no heat treatment can increase the stone’s value greatly if the stone is otherwise of nice quality. This image shows undissolved rutile ‘silk’ inclusions within a Sri Lankan sapphire. This is evidence of no, or very low heat treatment and allowed me to value the stone accordingly.

In the following image we see amber containing ‘sun spangles’, which are indicative of heat treatment.

Origin Determination

Another important use of photomicrography is determining the origin of a gemstone. In this image we can see a three-phase inclusion which contains a liquid within a cavity, a gas, and a solid which in this case is a calcite crystal. There are also some blocky two-phase inclusions visible. This emerald was determined to be of Zambian origin. Determining the origin of a gemstone allows us to value it more accurately as some localities carry a premium, such as Colombian Muzo emeralds and Burmese sapphires and rubies from the infamous Mogok.

Let’s look at a price comparison to show how origin affects a gem’s value. In the case of this emerald from Zambia, the retail price per carat was £4950. The equivalent stone of same quality but with a Colombian origin would have a retail price per carat of £5850, that’s more than an 18% price difference.

Conclusion

For me, photomicrography is an incredibly useful tool which allows me to accurately value gemstones. But its also become a passion and something I thoroughly enjoy doing. I am always trying to improve on my image quality and find new stones with interesting inclusions which people may not have seen before. If you’d like to see more of my photomicrography, you can check out my Instagram page: Instagram.com/Sammantha_maclachlan_fga_ltd

E for Eternity Rings

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Eternal love

How better to declare one’s love but by gifting an eternity ring?

Sometimes called Infinity ring, it is a band set with identical gems throughout. Just as the snake rings represented undying love, eternity rings seem to be the modern fashionable jewellery item to state such devotion.

Traditional materials

It is thought eternity rings have been gifted as far back as the 4th century BC. They were made of plants, such as hemp, or reeds and even elephant hair.

A tradition that went long into the Victorian era. Nowadays, these bands are made with precious metals such as gold and platinum. The stones have evolved from paste to sapphire, ruby in the 18th century to diamonds in the second half of the 20th century.

Engagement rings

Until the 1960s, an engagement ring would traditionally have been set with a diamond single-stone. It is rumoured that due to the surplus of small diamonds, approximately 0.25ct and smaller, the jewellery giant De Beers created a campaign in which they would use these smaller stones, set them in Eternity rings and promote this new essential jewel to couples who had already been married for several years.

Range of price

Eternity rings will come a wide range of price. What will impact this price? Materials such as the metal used will be the first component. A ring can be made of silver, gold or platinum, being the most expensive.

Secondly the stones will affect the budget the most. When an eternity ring is set with precious stones, it is important to remember how much carat weight the ring has as a total but also looking at each stone individually. The larger each single stone is, the pricier the ring as a whole. The “purity” of the stones is an element that cannot be forgotten either. Whether it be rubies, sapphires or diamond, the clearer the stones, the more desirable they are and therefore the more expensive they will be. We refer to this grading scale for diamonds as the four C: colour, carat, cut and clarity.

Navaratna ring

Navaratna – from the Sanskrit Nine (Nava) Gems (Ratna) – jewellery consists of an item of jewellery, necklace, bracelet

or ring, set with nine gems: ruby, diamond, pearl, red coral, hessonite, blue and yellow sapphire, emerald and cat’s eye. The Navaratna rings can be considered as a form of eternity ring, present in almost all Asian countries, beyond India where they originated from, regardless of religion. There are a few rules and traditions as to how to place the stones and how it should be worn. Women are to wear the ring on their left finger while the men on the opposite hand.

The ruby which represents the sun, should be placed in the middle and the gems should be of the upmost quality, making these jewels very precious indeed.

Infinite brands

Eternity rings are so popular that every luxury brand has taken to create and promote them as unique and essential jewels in a lady’s collection.

Tri-factor

Eternity rings possess the tri-factor: they make a statement all the while remaining discreet, and elegant. Who best to illustrate this than the Duchess of Cambridge, who not only wears her wedding band along with her engagement sapphire and diamond cluster ring but also a diamond eternity ring on top. The Eclipse diamond ring by Annoushka, is set with 0.23ct total of diamonds and retails at £1,500. It is said to have been a gift from the Duke of Cambridge for the birth of their first child, Prince George.

Your choice

So when should an eternity ring be gifted? Which finger should be worn on? Which brand to choose? Which gem? Which metal? So many choices to choose from it’s no wonder they have swept the jewellery market with ease. Some might say, it should be gifted after decades of marriage, others prefer to gift it as an engagement band, some may want diamonds, others precious stones such as sapphires. Offered in a variety of style and at various price range, as one of Britain’s favourite matchmaker Cilla Black would say, “The decision is yours”!

B for Boucheron

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Boucheron, a brief history

The luxurious brand’s story starts when Frédéric Boucheron became an apprentice jeweller to Jules Chaise at the young age of 14 in 1844. Descendant from a family of drapers, he seemed to already have a thorough understanding of how to work with delicate fabrics like silk and lace.

He opened his first boutique in 1858 at Palais Royal, in Paris, next to the Louvre. A decade later, he won gold medal at the Exposition Universelle. He partnered with Paul Legrand for several years as chief designer. During their collaboration, Boucheron won the Grand Prix for Outstanding Innovation in a jewellery collection in 1889.

After winning this prize, Frédéric Boucheron opened the first boutique in 1893, Place Vendome in the heart of Paris. He was the first jeweller to take up space in this exquisite location, at n.26 where it is said that it was the sunniest part of the square and “the diamonds would sparkle all the more brilliantly”.

In 1900 he was awarded the Légion d’Honneur for his display at the Exposition Universelle, encapsulating the Art Nouveau style. He died two years later and left the Maison to his son Louis.

Outstanding and Unique Innovation

In 1879, Boucheron created a clasp-less necklace, named the “Point d’Interrogation” (the question mark). It was the first time a jeweller had created a piece of jewellery which women could place on themselves without any assistance if they so wished. Throughout the 164 years the Maison Boucheron has reinvented the style and adapted it to different styles with more or less foliate detail or a more contemporary look. It is its “stylistic approach, featuring asymmetry and curved lines” which make this necklace a signature piece for the jeweller, synonym of freedom and outstanding innovation.

Carat, 159 carat to be exact

Boucheron is synonymous of luxurious jewellery and “drapes” Royalty such as Queen Elizabeth II, Queen Rania of Jordan and some of the most famous women. One of these famous women of the 19th century was Marie-Louise MacKay, married to John MacKay who made his fortune through silver mining in the USA. She was intent on building one of the most important jewellery collections and Boucheron was her go-to jeweller. In 1878, Boucheron was entrusted with setting what was said to be the most beautiful Kashmir sapphire in the world, weighing 159 carats, of oval shape. It was valued at over Francs 700,000.

Hotel de Nocé

The Boucheron store is located in the grand Hotel de Nocé, built in 1717 and named after Charles de Nocé. The building has passed to numerous owners, including Jean-Baptiste-Francois Gigot d’Orcy, who had a passion for minerology. Sometimes the Hotel is called Hotel d’Orcy. The Hotel was home to some of the most famous people such as Marquis de la Baume, the “most expensive boot maker in the world” Yantorny and Countess Castiglione, also known as Virginia Oldoini, ex-mistress to Napoleon III. When Boucheron moved in to the building in 1893, “the most beautiful woman of her century” refused to move out until 1894. Two portraits of the Countess still look down on the boutique to this day.

Boucheron was the first jeweller to take up space on Place Vendome.
When Boucheron was bought in 2016 by the Kering group, they undertook a full restoration of the Hotel.

The façade of the building is listed which means that if Boucheron were to move out, it would be impossible for the new owners to make any changes. The inside was restored to its glorious state, with attention to detail such as Chinese wallpaper restored by Atelier Mériguet-Carrière.

With the renovation came the creation of hotel rooms, where guests come to spend a night within the Boucheron boutique at the heart of Paris.

Princess Eugenie

In 2018, on her wedding day, Princess Eugénie wore the Greville emerald and diamond tiara, initially created by Boucheron in 1900 and set with a 93.70 carat cabochon emerald, mounted in platinum.

The tiara in 1921 after modifications to include the centre emerald and a more geometric style, contemporary of Art Déco jewellery.

The Hon. Mrs Greville, who lived at Polesden Lacey, was a friend of Prince Albert and Elizabeth, Queen Mother. After they were married, the couple spent their honeymoon in Mrs Greville’s home.

In her will, Mrs Greville bequeathed the tiara to the Queen, who in turn lent it to Princess Eugénie for her wedding. It was the first time in over a century, that the Boucheron tiara had been seen in public.

Reflet wristwatch

In 1947, Boucheron created the Reflet wristwatch with interchangeable bracelets. The collection has a rectangular dial with baton hourmarkers and Roman numerals.

The watch comes in stainless steel or gold, with or without diamonds.
Not only was Boucheron the first jewellery to introduce this system, it has also added extra sparkle. Its sapphire glass is particularly magic: a breadth on the glass and the Place Vendome column appears for a brief instant.

Each watch is engraved to the reverse “Je ne sonne que les heures heureuses” (I only ring the happiest hours).

Only women

Traditionally, the jewellery industry has been male-led, but in 2015, Boucheron appointed Hélène Poulit-Duquesne as CEO and Claire Choisne, as Creative Director.

Hélène Poulit-Duquesne graduated from l’ESSEC, one of the most prestigious business school. She began her career in 1998 when she joined LVMH. Later she would join Cartier, where in 2014 she became Director of International Business and Client Development.

Claire Choisne also began her career in 1998. In 2001 she joined Lorenz Baumer as Creative Studio Manager. Over a decade ago, she moved to Boucheron, where she oversees all the jewellery and watches designs.
Boucheron has paved the way, once more, by handing the direction of a leading jeweller to two women, and has created resplendent new collections.

Nagaur necklace

In 2015, Claire Choisne integrated sand from the Thar desert in Rajasthan to include in the new Boucheron collection, the Nagaur necklace.

It is inspired by the Nagaur fortress.

The necklace is set with multiple strings of pearls with the sand encased in the rock crystal pendant, overlaid with diamonds.

The necklace is part of the Bleu de Jodhpur collection which comprises of 105 designs. Claire Choisne, says, “The aim was to create an image of India far from all clichés and stereotypes with the innovation of unused materials. The city of Jodhpur covered with the blue façades of its houses became a strong inspiration. Bold blue represents audacity because of the innovations behind the creations. The link between Jodhpur, the ‘Sun City’, and Boucheron, a jeweller in the ‘City of Light’, made the inspiration more obvious. India has always been an important concept in Boucheron’s creative history with its rich and vibrant heritage, the architecture of its palaces and the colours of its towns and cities. I believe that through audacity and maintaining a clear link between heritage and modernity, one is able to create figurative designs and thus translate this into contemporary high jewellery.”

A revival of the Plume de Paon is now set with marble and diamonds on white gold.

Boucheron is synonymous of luxury and exquisite craftsmanship. Throughout the centuries, the Maison has invented, innovated and reinvented its timeless pieces, moving through the fashions and adapting to contemporary designs. It undoubtedly has the “je ne sais quoi” that great and unrivalled French jewellers have.