Category Archives: Jewellery

Who wore what, your guide to the BAFTA 2023 glitz

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Since 2010, the Prince of Wales has been the President of the Baftas and on Sunday, the Princess of Wales, was, as always, an example of chic, elegance and forward thinking while restyling an Alexander McQueen dress she previously wore in 2019.

She paired the white one-shouldered gown with Cascading floral earrings by Zara, selling for £17.99.

The Prince of Wales was seen wearing a Rolex while the host of the BAFTAs, Richard E. Grant was spotted wearing two watches: a Tank by Cartier, set to UK time, gifted by his wife and a chronograph set to Eswatini (formerly Swaziland) in memory of his late father.

 

 

 

 

 

 

 

Other dapper attendees included Regé-Jean Page, who combined his fitted suit with diamond double-clips. These clips are a classic of the 1920s and are typically set with brilliant, baguette and calibré-cut diamonds. Calibré-cut stones are gems that have been cut to fit a precise setting.

Sotheby’s had a sale estimate of CHF 4,800-7,500 for this diamond double-clip brooch in July 2022 and in fact advertised it worn in a similar manner as Regé-Jean Page.

He also sported a Cartier watch, Santos de Cartier, which ranges from £3,550 for a small model steel design to £61,000, mounted in rose gold.

Regé-Jean Page was not the only one seen wearing the diamond clips on a suit. Fellow actor Paul Mescal wore a similar clip by Cartier.

Regé-Jean Page was not the only one seen wearing the diamond clips on a suit. Fellow actor Paul Mescal wore a similar clip by Cartier.

Designed by Francesca Amfitheatrof, it is connected to uniform rows of silver Tahitian pearls together with matching earrings. “Your effort to focuson rewearing and repurposing led us to this necklace. Using Tahitian pearls, gold, diamonds and a 23.78 carats Nigerian Tourmaline, all from existing pieces. I loved making this necklace for you!” said Amfitheatrof.

The actress also wore a gold and diamond ring from Louis Vuitton Stellar Times High jewellery collection, for which she has been a brand ambassador since June 2022. Other jewellery designers have reinvented their collection using their legacy designs. “Frédéric Boucheron innovated, over 130 years ago, with feather creations strong in symbolism and style” and at this year’s BAFTAs Angela Bassett looks sublime wearing the brands Plume de Paon earrings.

Measuring 6cm and set with under 6 carats of diamonds, the earrings retail for £94,100 in white gold and £85,500 in rose gold. You can read more about the stunning creations from the designer in my article B for Boucheron.

Other show stoppers included the jewellery by Moussaieff worn by Michelle Yeoh.

Moussaieff is renowned for its exceptional gems, including diamonds weighing up to 100 carats for sale in their Bond Street store. The items worn by the actress did not disappoint when it comes to the wow factor. She was seen wearing a Burmese ruby and diamond bangle, diamond earrings, and Burmese pink sapphire ring to complement her pink Dior outfit. To finalise the look, she opted for a Richard Mille wristwatch. One of the most unique watches by the brand, RM27-04 Rafael Nadal, can be bought for just under £2 million on the secondary market.

If over a £1 million is simply too much to spend on a watch, why not “settle” for a beautiful Omega wristwatch, seen worn by Eddie Redmayne.

The actor is brand ambassador and does his job to perfection! The pink dial steel Omega Constellation currently retails for £2,900.

But a red carpet event would not be complete without some Bvlgari Serpenti necklaces. This was the jewellery of choice for a few actresses, such as Lashana Lynch, who very cleverly wore the seprent’s head in her back with matching earrings (currently out of stock but retailing for £29,500 and set with a little over 2 carats of diamonds). A similar necklace was sold at Sotheby’s for USD920,000 in April 2019.

Julianne Moore effortlessly wore the Bvlgari necklace, or perhaps were there two or three?

Red carpets are always a delight to discover new jewels, and ways of wearing them and pairing them  with outfits. Let there be sparkles and glitz!

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!

K is for Kyanite

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Introduction

K is for – Kyanite, a gemstone which is more frequently being used in modern jewellery and is a favourite of designers such a Pippa Small. But what is this beautiful blue stone and what do you need to know about caring for it?

Colour

Sometimes mistaken for sapphire, kyanite was named in 1789 by Abraham Gottlieb Werner and is derived from the Greek word ‘kyanos’ which is in reference to its typically blue hue though it can also be found in other colours including green, grey and rarely yellow, pink and orange. A strongly pleochroic material, kyanite is a trichroic stone meaning three distinct colours can be seen depending on orientation though our eyes only allow us to distinguish two at a time. The orange variety often has weak pleochroism. Most material has a ‘glass-like’ vitreous or pearly lustre and is transparent to translucent.

Chemistry and Localities

Kyanite is an aluminium silicate mineral (Al2SiO5) and belongs to the triclinic crystal system, most commonly forming in sprays of blade-like crystals but distinct euhedral crystals can also be found and are highly prized by gem crystal collectors as specimens. Kyanite is the high-pressure preferring polymorph of the minerals Andalusite and Sillimanite, which means that the three minerals have the same chemical composition but different crystal systems. The most significant localities are Kenya, Mozambique, Madagascar and the USA.

Use as a Gemstone

Kyanite is difficult to facet and polish due to its perfect cleavage and differential hardness. When cut parallel to the c-axis (direction of growth), it has a hardness of 4 to 4.5 but when cut perpendicular to the c-axis, it has a hardness of 6 to 7.5. Whilst some material may be relatively free from inclusions, most kyanite seen in jewellery will be included or colourzoned. This is especially true of larger stones. A rare phenomenon called chatoyancy or ‘cat’s-eye’ has been reportedly found in some kyanites when cut en cabochon.

Due to its variable hardness and brittle nature, kyanite is not particularly suitable for wearing in rings or bracelets and a protective collet setting is preferable to minimise damage from wear. It is suitable for other jewellery items such as earrings and pendants which are less likely to encounter wear and tear of the stones.

Care should be taken when cleaning kyanite and they should not be placed in an ultrasonic or steam cleaner. Instead, a soft brush (a baby’s toothbrush is perfect) with some warm soapy water is recommended.

Other Uses

Kyanite is also used in refractory and ceramic products like high-refractory strength porcelain and other porcelains such as dentures and bathroom fixtures. Its resistance to heat also makes it useful in the manufacture of cutting wheels, insulators and abrasives.

Gem Testing

Although it was previously mentioned that kyanite could be visually mistaken for sapphire, gemmological testing easily confirms the identification of these materials. Kyanite has a refractive index of 1.710 to 1.735 whereas sapphire has a refractive index of 1.76 to 1.77. A difference in optical character along with specific gravity testing also distinguishes between the two.

Value

Lower quality, heavily included material can be purchased for a mere few pounds (GBP) per carat but cleaner, higher quality blue stones and rarer coloured kyanites can achieve hundreds of pounds per carat.

Princess Catherine’s jewellery

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From Everyday Mum To Future Queen, A Jewel For Every Occasion

It all started with a proposal…

One of the most famous items of jewellery the Princess of Wales has come to possess, is the “Royal Blue” sapphire engagement ring, which belonged to her mother-in-law, the late Princess Diana. It is probably the most famous sapphire, weighing 12 carats and set within a surround of brilliant-cut diamonds.

In 1981, chosen by the then Prince Charles, for Diana, from the official royal jewellers Garrard, 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.

For her wedding, Queen Elizabeth II lent the Cartier Halo Tiara to the Duchess. It was made in 1936 and comprises of 739 brilliant-cut diamonds and 149 baguette-cut diamonds, and it was purchased by King George VI (then still Duke of York) for his wife, Elizabeth (who we all know better as the Queen Mother), which she wore to a charity ball at Claridge’s in London, their first gala outing since the official ending of the lengthy court mourning period for the late King George V.

To match Catherine’s engagement ring, the Duke of Cambridge gifted a pair of sapphire and diamond cluster earrings from his mother’s personal collection. The Princess simply had them altered to be drops rather than clips.

The Princess is often seen combining her engagement ring with a classic 33mm Cartier Ballon Bleu wristwatch. Mounted in stainless steel, it is decorated with Roman numerals, fluted crown with a synthetic spinel cabochon, silvered guilloché opaline dial, blued-steel sword-shaped hands, sapphire crystal and steel bracelet. It currently retails for £5,400.

When Catherine gave birth to Prince George, Prince William gifted her the Eclipse diamond ring by Annoushka. It is set with 0.23ct total of diamonds and retails at £1,500.

She wears it in combination with her engagement ring.

For the arrival of Princess Charlotte, the then Duke of Cambridge this time choose another designer, Kiki McDonough, and gifted the Duchess a pair of green tourmaline and green amethyst drop earrings.

She was first spotted wearing these during the couple’s tour of India in 2016. Though these were made-to-order for the Princess, you can currently get a pair of similar earrings (below) from the designer for £3,700. These are green amethyst and diamond earrings, mounted in yellow gold.

The Princess owns several pieces by the designer: 18 pairs of earrings and three necklace to date.

Here are some examples:

The Princess has jewellery for every occasion, as can be expected. Her everyday jewels include the above by designer jewellers, but Catherine also favours high street jewellery, such as the below by Accesorize.

These are no longer available but can be found on eBay ranging from £48 to a whopping £96.96 (plus £10.77 for postage!).

It was rumoured that when Prince Louis was born, the Prince gave Catherine a citrine ring, but it was discovered by fans that the Princess had previously worn it in 2008 while celebrating her birthday.

The ring is beautiful and has meaning for the Princess. She was also seen wearing it for the premiere of the last James Bond film, No Time to Die, to match the golden sequinned gown by Jenny Packham.

Perhaps my favourite dress worn by the Princess.

When the Princess is not at a red carpet event or formal gala, the mother of three has been seen to wear a necklace by Spells of Love retailing for £85, suspending three medallions with the initial of each child.

Catherine also wears a Merci Maman necklace gifted to her by her sister, Pippa, after the birth of Prince George in 2014.

For more formal wear, the Princess has been seen wearing brooches, tiaras and exceptional necklaces, such as the four-row pearl chocker, created using a collection of cultured pearls gifted to the Queen by the Japanese government which Catherine wore to Prince Philip’s funeral in April, 2021. In mourning, the Royals don’t wear colour, so pearls are pure, white, and unflashy. This tradition comes from Queen Victoria, who did not want to wear any colour following the death of her husband Prince Albert.

The late Princess Diana also wore it to a state banquet in the Netherlands.

A very sombre then Duchess of Cambridge wore the historical chocker for the Queen’s funeral earlier this year.

The Princess combined the tiara worn by the late Princess Diana (above) with her engagement ring of course but also the Royal Family Order brooch, representing the late Monarch within a diamond surround.

The tiara, called the Lover’s Knot tiara, was lent to Diana as seen below, then went back to the Queen, and upon her passing, is now worn exclusively by Princess Catherine.

Several of Queen Elizabeth’s II jewels will have been passed down to the Queen Consort and several to Catherine.

Recently, the Princess wowed us with this stunning emerald and diamond choker. She stepped out at the Earthshot Prize Awards in Boston in a bright green gown by Solace London, paired with an emerald-and-diamond choker, once owned by Princess Diana. The choker itself was first owned by Queen Mary in 1911, and later presented to Diana as a wedding gift to Prince Charles in 1981.

In this year’s Christmas pictures, the Princess wears a pair of ruby and diamond cluster earrings, made by Soru in Turkey, and retail for £145.

Whatever the occasion, Princess Catherine never disappoints with her exquisite outfits and matching jewellery. And on this special occasion, I wish her a very Happy Birthday.

Meet the jewellery team – Helen & Sammantha

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Profile – Helen Doyle

Jewellery, Handbag and Wristwatch Specialist

Helen has a wealth of knowledge and over 20 years of experience in the industry. From a family of art and antique dealers and auctioneers, she earned her gemmology diploma from The Gemmological Association of Great Britain.

Experience

She joined the jewellery department at Bonham’s Auctioneers before moving on to lead roles at various asset lenders in London and New York. As her career has progressed, she has also become a specialist in valuing designer handbags and watches. She has been lucky enough to value some exceptionally important pieces throughout her career.

Passionate about keeping up to date with market trends, she prides herself on offering an excellent level of customer service and has a remarkable eye for detail.

About

Helen now lives in Cheltenham working as a valuer and running her own business selling antique jewellery and designer handbags. She loves exploring antique fairs and auctions for new stock. In her spare time, she enjoys restringing pearls and taking her cocker spaniel Ruby for walks in the Cotswolds.

Spot-light

Helen’s favourite piece to value was a rare solid silver Hermes Kelly handbag. Helen loves antique Cartier, Van Cleef and pretty Victorian rings.

Covering

  • South West
  • East & West Midlands
  • Wales

Profile – Sammantha Maclachlan

Jewellery & Wristwatch Specialist

Sammantha Maclachlan FGA DGA MJVA MIRV is an independent registered valuer specialising in jewellery and watches. With over 18 years of experience in the luxury jewellery industry, she has gained valuable expertise with brands such as Mikimoto, Rolex and Patek Philippe.

Professional Qualifications

A senior accredited gemologist, Sammantha is a fellow of the Gemmological Association of Great Britain and a holder of the diamond and gemmology diploma. Sammantha prides herself in offering the highest level of customer service in a professional and friendly manner.

  • Fellow of the Gemmological Association of Great Britain (FGA)
  • Diamond diploma from the Gemmological Association of Great Britain (DGA)
  • Member of the National Association of Jewellers Institute of Registered Valuers (MIRV)
  • Member of the Jewellery Valuers Association (MJVA)
  • Applied Jewelry Professional from the Gemological Institute of America (GIA AJP)
  • Professional Jewellers Diploma from the NAJ (PJ Dip)
  • Cultured pearl specialist from Cultured Pearl Association (CPAA)
  • Diamond grader with the International Gemmological Institute Antwerp (IGI)
  • Certificate of Appraisal Theory from NAJ (CAT)

About

In her spare time, Sammantha enjoys photomicrography, which is the art of photographing gemstones and their inclusions under high magnification.

Spot-light

Sammantha’s favourite piece valued is a pair of large pink diamond earrings from the since-closed Argyle Mine in Australia. A true rarity of the jewellery world.

Covering

  • Scotland & Borders

Fluctuations of the market in the last few years

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As with every market, jewellery prices will inevitably fluctuate, though I can’t say I’ve seen the price of precious stones go down in the last few years. Seen as a commodity by some and as a treasure by others, it’s important to understand the cost of remaking a unique piece of jewellery. It will be dictated by global demand for diamond (or other precious stones), gold, silver, palladium and other alloy metals and stones.

High worldwide demand for palladium – due to its key importance in the development of renewable energy – inevitably increases the cost of gold – based items of jewellery. Because of its softness, gold used in jewellery is mixed with alloys. Alloys are other metals, such as zinc, copper, nickel, iron, cadmium, aluminium, silver, platinum and palladium. This mix then alters its appearance, hardness and melting point. Palladium is a chosen favourite as an alloy metal. At today’s value, the scrap value for palladium is £41/gram compared to £21.50/gram for platinum, which then impacts gold jewellery pieces.

As an example, this 9ct gold gate bracelet with heart locket was estimated £70-£100 by Bonhams in 2005. Today’s estimate would most likely be £200-£300.

Designer pieces with diamonds are affected in a similar manner.

This diamond and gold bracelet by Kutchinsky (above) sold at Bonhams for £1,553 (including premium) in 2005.

A similar item by the same designer (below) sold for £2,550 (including premium) in 2019.

For insurance purpose, the above bracelet would receive a value of £8,000 as at 2022.

Coloured stones have also seen an increase in price.

This emerald and diamond cluster ring is set with an emerald weighing approximately 5.20 carats and approximately 1.15 carats of diamonds. It was previously valued at £42,000 in 2011 for insurance purpose. Eleven years on, it is now valued at £65,000.

One could try to apply generic inflation percentages as a tool to update valuations, however this is incorrect and will often lead to your jewellery being under or overvalued. In the case of the above ring, a formula trying to reflect inflation would be detrimental to the value of the ring.

Valuing jewellery should always be case by case, as some signed vintage pieces will increase over the years, but not at the same rate as precious gemstones for example. The market for an Art Déco Cartier wristwatch (as below), though rare, has a smaller market of potential buyers and sellers. Comparatively to coloured stones, the value for this wristwatch will never exceed a certain plateau. This watch currently retails for £35,000.

A similar wristwatch by Cartier (below) sold at Bonhams in 2017 for £16,250 (including premium) and would have most likely received an insurance value of £23,000.

Diamonds on the other hand continue to escalate at a steady pace.

These diamonds earstuds (above) are 4.01 carats and 4.04 carats respectively. They were valued for insurance purposes at £300,000 in 2012 and are now valued at £360,000.

The same applies to contemporary signed pieces such as the Alhambra collection by Van Cleef & Arpels.

The mother-of-pearl Alhambra necklace by Van Cleef & Arpels was sold for £9,950 less than ten years ago and now retails for £15,800. A steady increase reflecting world demand for durable contemporary and elegant jewellery by a reputable designer.

The jewellery market is not exempt from worldwide affairs and economic changes, but it will always have an added unquantifiable value: emotional value. Jewellery can be seen as an investment, but it still predominantly remains a purchase of pleasure and luxury, whichever gem or metal one chooses and whatever happens in the world.

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!

Hocus pocus… Focus on… Skull Jewellery

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Skull jewellery and gemstones

Skulls. Usually not what comes to mind when talking about jewellery design and carved gems. However, skull jewels, and especially rings, have had a long tradition of being part of one’s collection.

The appeal may not be so obvious but it is one that continues to be popular throughout times.

Why a skull? It acts as a reminder. That life is not forever and days are counted. That one should live every day to the fullest, carpe diem. And what’s not to love about that message? Embracing one’s life and accepting your fate, not always fighting against the things we cannot control.

In more recent years, Theo Fennell is recognised as one of the top fashion jewellers to use this symbol of life and has used all sorts of gemstones in his creations to amplify his creations.

If rings are not your go to jewellery item this Halloween, then perhaps a pendant necklace by the same designer could be an option.

Halloween calls for creativity, so this year, why not trade in the pumpkin for a carved gem skull? Sure to get your neighbours quivering in their boots and make a bold statement.

There are a multitude of options. In keeping with the orange theme of the pumpkin, a citrine skull could be an option.

Quartz, which citrine is a variety of, has a hardness of 7/7.5 on the Mohs scale and makes it a good candidate to get sharp edges to carve the teeth and a pointy nose.

It can also come other colours such as purple amethyst:

Or even blue:

A wide variety of options is available on the market, including at specialized auctions.

Bonhams sold this lot in Los Angeles in 2017 for $1,187 incl premium. It includes an amethyst obelisk decorated with twenty carved skulls, Height 11in; a sculpture comprising three skulls with a butterfly, carved of boulder opal from Queensland, Australia, length 5 1/2 in; together with a Mexican black obsidian carving of a skull with owl perched, height 6 1/2 in.

But possibly the most “out of this world” carved skull must be a sculpture sold in 2015 at Bonhams in Los Angeles, carved out of meteorite, making it the largest Gibeon meteorite carving in the world.

Gibeon meteorites are iron-based and “originated billions of years ago from unstable planet that existed briefly between Jupiter and Mars.

When the planet broke apart, a section of its core travelled through space for four billion years.” It penetrated the Earth’s atmosphere about 1,000 years ago and landed in Namibia.

This particular 21kgs life-sized carving, nicknamed Yorick, was created from a 280kgs meteorite. It is one of the rarest forms of meteorite.

The choice is vast for Halloween decorations whether for the house or fashionwear. All one needs to do now is pick the right outfit for a night of 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…