Aurélia Turrall, Jewellery Specialist

Autumn is upon us, and so we all prepare to bring our winter coats and hats down from the attic ready to face the colder days and chill in the air. But it’s not all doom and gloom. Who says new season, says new coats, and perhaps new jewels…

If I had £5,000 I would buy myself a beautiful Art Déco diamond double clip brooch. And that would certainly brighten up any cold day and any winter coat or hat! Why would I pick that particular piece? The answer is simple and straight forward: one can never go wrong with diamonds. Diamonds are timeless, full of fire, brilliance and sparkle. Diamonds set in Art Déco pieces are often a mix between old brilliant-cut (round) and very sharp calibré-cut. Calibré-cut is the name for those stones which have been cut to fit a precise piece of jewellery. They come in all sorts of shapes and sizes and can be diamonds, rubies, sapphires, emeralds, onyx… the list goes on. It is that unique combination of cuts which I find fascinating and exciting when wearing a piece of jewellery. Choosing an older piece of jewellery means embracing its history. With Art Déco, the history is in the stones, but not only. The material used to mount the stones changed from gold to platinum. Platinum became a new favourite in the roaring 20s and was used by all the great designers. So much so that Cartier launched their new platinum jewellery collection on the same day they opened their studio in Paris, rue de la Paix, because of what it represented in the world of jewellery. This new technique offered more sturdiness to the pieces and brighter metal.

But Art Déco is so much more than stones and metal. It is a symbol, synonymous of freedom and order after a world in chaos. The straight lines found in Art Déco jewellery break with the traditional ribbons and swags from the Belle époque. They can appear simple but are in fact very complex, combining circular shapes with kite or baguette-cuts for example. They are designed with an edge to give women an edge. The pieces can be angular but more importantly they have clean lines, with perfect symmetry, no room for “delicacy” found in earlier jewels. Even though on close inspection, Art Déco pieces are incredibly delicate as they try to juggle new shapes, cuts and combinations of colours. With an all diamond-set piece, one is able to add it to any coloured outfit.

A double-clip brooch from that period would combine all of the above and even more. I would pick this item for its ambivalence. It can be worn as one piece, or separately, allowing to wear one part on a silk scarf, to tie the two ends together for example, and the other perhaps on one’s coat, hat or a suit.

Chic and timeless, an Art Déco piece worn in a man’s world makes a strong statement of equality and fearlessness, fitting any suit or garment with its contemporary look filled with history. 

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Aurélia Turrall, Jewellery Specialist

Henri IV and his wife Catherine de Medicis decided to rebuild and add to the collection of the Crown jewels. Nicolas Harlay de Sancy was in charge of Henri IV finances. He owned two diamonds which he purchased from the King of Portugal. He recut these and named them Grand Sancy and Beau Sancy. He offered to sell the Sancy to Henri IV who declined stating it was too expensive. Instead, he bought the Beau Sancy.

The diamonds most likely came from India and could have been part of the jewels belonging to Charles the Bold, Duke of Burgundy 1467-1477. Amongst his jewels were the White Rose diamond. It is rumoured the Sancy could
be the same stone.

The Beau Sancy, K colour, light brown, SI1 clarity, type IIa (type IIa diamonds are chemically “cleaner” and often have exceptional clarity) weighing 34.98 carats. In 1610, Marie de Medicis had the Beau Sancy set atop her coronation crown.

The following day, Henri IV was murdered by Ravaillac. For four centuries the diamond was owned by several European Royal houses, such as the House of Medici, Kings of England and Prussia. It was sold by Sotheby’s in 2012 for £5.3 million to a private collector.

The Sancy weighs 55.23 carats. It has 51 facets and was considered to be one of the most beautiful diamond for almost two centuries until the Cullinan was found in 1905 in South Africa.

It was purchased by James I for 60,000 French crowns and was set in the Mirror of Great Britain.

The Sancy was described in the Tower of London’s inventory as “…one fayre dyamonde, cut in fawcetts, bought of Sauncy…”

The Sancy was briefly owned by Charles I, King of England and then by his son James II. James had to flee to France under Louis XIV protection and brought with him the Sancy which he agreed to sell to Cardinal Mazarin in 1657 for £25,000.

Cardinal Mazarin was advisor to the young Louis XIV. Incredibly wealthy with a fortune said to be worth 22 tonnes of gold, he purchased gems and jewels which he will then bequeath to Louis XIV on his death with the condition that these could not be sold, had to remain all together and would be called the “Mazarins”.

Amongst those were 12 stones which he purchased from Henrietta Maria, Queen Consort of England, wife of Charles I in exile from England. These stones are the foundation of the 18 “Mazarins”.

Louis XIV added to his collection by purchasing the Diamant de Guise in 1665 and in 1673 the Hortensia diamond, a pink 21.32 carat diamond.
Most, if not all diamonds came from India, more accessible than Borneo where diamonds were also found. During one of his last trips, Jean-Baptiste Tavernier brought back the “Tavernier Blue” which became the “Grand bleu de Louis XIV”. It weighed approximately 115.40 carats.

It was stolen in the great theft of 1792 and recut, down to 69 carats. It is said to be the well-known cursed Hope diamond, recut to prevent proper identification.

Tavernier also brought back the Grand Sapphire of Louis XIV, of Ceylon origin. The king purchased it in 1669 and weighs 135.80 carats. It was believed that sapphires could cure plagues which is why it was never cut. I is exhibited in Paris.

In 1691 an inventory was drawn up stating that there were: 5,885 diamonds, 1,588 coloured gems, 488 pearls adding to a total of 11,430,481 pounds.

The Regent diamond was added to the collection a few years later, bought by the Duke of Orléans in 1717, then Regent of France, for £135,000 (the equivalent of £21 million). It had taken two years to cut, 1703-1705, and finally weighed 140.64 carats.

It was considered to be the most beautiful and clean diamond, until the Cullinan, becoming a symbol of the French crown.

In 1722, the Regent was set at the front of Louis XV coronation the crown, the Sancy at the top of the fleur-de-lys alongside Mazarin diamonds.

It was subsequently set in Louis XVI coronation crown in 1775. In 1791 is was valued at £480,000 (the equivalent of £58 million).

Having won the Campagnes d’Italie (wars in Italy), a superstitious Napoleon had the Regent set in his sword in 1812, convinced it had made him win the wars. It was later set in Princess Eugenie’s diadem in 1825.

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Aurélia Turrall, Jewellery Specialist

Francis I, French king from 1515-1547, decided to differentiate personal jewels to those belonging to the State. At the time, jewels were used to finance wars and for political purposes. In 1530 he selected 8 gems and jewels. Kings and Queens would enjoy these gems and jewels throughout their reign but the collection would be inalienable and had to be passed down on their death. The collection included three spinels called “balais rubies”, from the north region of Afghanistan called Badakhchan. In many crown jewels, spinels are described as rubies.

The most important was the Côte-de-Bretagne, a 214 carat spinel, probably from Pakistan. Originally it was an odd-shaped stone, with three points.

The stone belonged to Anne de Bretagne, wife of Louis XII and are linked to how Brittany became part of France.

The Côte-de-Bretagne is the only “survivor” of the original collection put together by Francois Ier. It has been pawned several times, coming and going numerous times. It has stood the test of time but not intact; re-cut for Louis XV in the shape of a dragon, bringing its weight down to 107 carats. The stone is so large that it could have financed a whole city at the time.

The other spinels were the Oeuf de Naples (the egg of Naples, top) a 247 carat spinel added by Francis II, and l’A-Romain (the Roman A, for Anne of Brittany, bottom).

A diamond pendant was amongst the 1565 inventory of Mary Stuart. It was a diamond pendant with table cut diamonds, bought to her by her husband, Francis II, when she was Queen consort of France between 1559 and 1560.

He also purchased the Great Table, a 41 carat diamond, worth 212kgs of gold. 30 years after Francis I death, his grandson Henri III pawned the Crown jewels, against his grandfather’s wishes, in order to pay for the religious wars. Very few jewels were bought back but the Côte-de-Bretagne was miraculously recovered.

Aurélia Turrall, Jewellery Specialist

The crown jewels are a collection of jewellery that belong to the Queen in right of the Crown. They are comprised of heirlooms and jewels presented to her during her reign. The Queen regularly wears these pieces in official portraits and formal occasions. The jewels will be passed down to the next Monarch and will be worn to further ceremonies and coronation.
From Henry VIII to Queen Elizabeth II, the monarchs have purchased and been gifted with the most important pieces of the collection.
Jewellery and diamonds in particular have always played a big part in history, being traded, stolen, gifted, looted. Coloured gems have different meanings depending on the country but diamonds is, across the board, the one gem which symbolises power and wealth. Its origin comes from the Greek adamas, which signifies invincible. Every monarch has been depicted in portrait adorned with diamonds.

King Henry VIII is painted wearing black stones in this portrait, but these are in fact diamonds. Diamonds were not depicted in all their glory radiating light and clarity until much later. At this time, the painter’s workshop would complete the painting and did not have access to the gems, therefore altering the diamonds’ colours.
Queen Elizabeth I obtained the Mirror of Portugal from Dom Antonio, fleeing to England after being defeated by the Spanish. He sold the stone, a table-cut diamond weighing 30 carats, to the monarch in an attempt to finance more battles against Spain. Defeated once more, Queen Elizabeth now has hold of the diamond. She has the diamond set in a gold pendant within an enamel surround, suspended from gold chains.
The Queen is shown wearing gold and jewellery in her hair but also on her garment.

The Mirror of Portugal is then bequeathed to James I. It will later be sold to Cardinal Mazarin and recut into the Mazarin III. The Mazarin III was stolen in 1792 during the great heist of the Garde Meuble in Paris and has yet to be recovered.

One of the most famous diamonds to have been part of the Crown jewels is the Sancy. It weighs 55.23 carats, has 51 facets and was considered to be one of the most beautiful diamond for almost two centuries until the Cullinan was found in 1905 in South Africa.
It was purchased by James I for 60,000 French crowns and was set in the Mirror of Great Britain.
The Sancy was described in the Tower of London’s inventory as “…one fayre dyamonde, cut in fawcetts, bought of Sauncy…”
The Sancy was briefly owned by Charles I, King of England and then by his son James II. James had to flee to France under Louis XIV protection and brought with him the Sancy which he agreed to sell to Cardinal Mazarin in 1657 for £25,000. The Sancy is now exhibited in the Louvre.
Anne of Denmark, consort of James I, seen in this portrait wearing large jewels on her corsage, pearl necklace and earrings, diamond in her hair.

After 1725, diamonds were heavily imported from Brazil, as new sources were discovered. Diamonds are then preferred to coloured gems.
Queen Charlotte is painted wearing diamond diadem, girandole earrings, a diamond dog collar and pearls. Girandole earrings were very fashionable in the 18th century and named after a candelabra. They comprise of a central stone suspending three drops.

Aurélia Turrall, Jewellery Specialist

The Early Days of Cartier
In 1847 Louis-Francois Cartier takes over a studio in Paris, joined by his son Alfred, and later by his three grandsons, Louis, Pierre and Jacques. Within a decade their reputation precedes them and they provide jewellery to the Empress and Napoleon’s extended family.
The years 1910-1940 are considered by many experts to be the golden era for Cartier. It employed the finest designers and craftsmen, but not necessarily jewellery designers. They preferred to hire designers from all backgrounds: furniture designers and architects to get a fresh pair of eyes on jewellery design.
During the early 20th century, peace rules and the Exposition Universelle of April 1900 attracts over 50 million guests in 7 months. The Ritz opened its doors in 1898. It is overall a prosperous time during which Cartier move into their new quarters in the luxurious rue de la Paix, in Paris. From then, everything takes off. They have international purchasers, organise exhibitions abroad such as in St Petersburg to showcase exceptional pieces inspired by Easter and Christmas. When they officially open their new atelier (“shop”) rue de la Paix, they combine it with launching a new technique of jewellery making: setting stones and jewels into platinum all the while keeping the traditional style.
It was the beginning of a revolution yet to come in jewellery design and making.
The Beginnings of the Art Deco Movement
It’s generally agreed that the 1925 Exposition Internationale des Arts Décoratifs et Industriels Modernes in Paris was the official launch of the Art Deco movement, though the style can be traced back at least a decade before.
The Great War is the catalyst for the movement to emerge. Women, having done men’s jobs during the war, come out of the shadow and step away from the delicate and fragile attire of the Belle Epoque era with bows, ribbons, swags, flowers, items mounted en-tremblant. From now on, angular stones, baguette and calibré-cut diamonds are favoured along with short hair “à la garçonne” (“like a boy”) and suits, giving women a masculine but sexy look.

Cartier Tank Original 1919
Art Deco was Synonymous with Freedom and Order
Launched in 1917, created by Louis Cartier and inspired by chaos, comes the Tank Original. This first wristwatch is rectangular, has a creamy-white dial which offsets the bold Roman numerals, chemin de fer chapter ring, with blue steel sword-shaped hands and a sapphire cabochon winder. The prototype was presented to General John Pershing of the American Expeditionary Force by Cartier himself and has become a symbol of chic and luxury.
It is a clear step away from the curves and fussiness of Art Nouveau with clear lines and no frills.
Louis Cartier, supposedly, was inspired by Renault F-17 tanks as seen from above: the brancards representing the tracks of the tank and the square case its main housing.
The wristwatch is a real symbol of freedom. No longer attached to your attire, there is freedom of movement in the wrist. It resonates the desire for structure in the midst of chaos, it celebrates technology and new machinery.
Art Deco Jewellery Echoes New Clothes and Hair Fashion
In jewellery, the Edwardian and Belle Epoque style are no longer accepted. Heavy tiaras are replaced with head pieces called bandeau.


Queen mother wearing a Cartier bandeau made up of three of the five bracelets which her husband, King George VI bought for her.

A diamond bandeau by Cartier sold by Christie’s in November 2019 for almost £900,000.
Some more “modest” bandeau would have been set with tarlatan and beads rather than diamonds. Or if jewellery was adorned with diamonds, smaller sized diamonds and gems were used, breaking from the past which favoured very large stones. Pieces were now set with detailed calibré-cut stones, meaning they are usually square or rectangle and cut to fit a piece.
The Art Deco head pieces were light and had straight lines rather than garlands found in Belle Epoque jewellery for example. It fits short hair and with that comes longer earrings for example and sautoir (long necklaces).

A Cartier pearl and diamond sautoir, circa 1925, sold at Christie’s in May 2012. Estimate £60,000-85,000 sold for approx. £400,000
Pearls are an important component for Cartier and were a sure thing to buy, until the Wall Street crash in 1929.
Monochrome Art Deco
In the earlier years of Art Deco jewellery, pieces were monochrome, black and white were key. Using rock crystal, onyx and diamonds as key gems. In the wake of the Great War, many were in mourning.

A diamond and rock crystal bangle, sold at Christie’s for $204,000 in Oct 2000.
This price reflects the constant desire for the sleek sober but luxurious look of Art Deco monochrome pieces, a style always in vogue and not likely to disappear anytime soon.
Vogue states that “A woman, in Paris, who knows how to dress, is almost always dressed in black. Not through laziness but by sophistication.”
The Move to New Materials and Daring Combinations
As we move forward so does the colour scheme in jewellery. Cartier attempts daring combinations of colours which no one had previously tried. There are two factors which contribute to this new direction. In the Cartier archives, we find that Leon Bakst, a Russian painter and costume designer, and part of the Ballets Russes, was a great source of inspiration for Charles Jacqueau, one of the great designers for Cartier from 1909 until 1954. Leon Bakst had designed costumes for a ballet, Scherehazade, mixing only blues, greens and red. This had a big impact on Jacqueau. This colour combination had always been considered to be of bad taste until Jacqueau decided to take a risk and integrate it in his jewellery designs. Simultaneously, the discovery of Tutankhamun’s tomb in 1922 created waves in the Cartier design. Louis Cartier pushes his designers to familiarise themselves with all things Egyptian: heading to the Louvre to study their collection or simply walking through Paris, filled with Egyptian artefacts, to understand the style. Never before had anyone combined carnelian with turquoise and lapis lazuli, until now.
Renewed interest in Asian art meant that jade, lacquer, coral and enamel were also integrated. At this time, Jacques Cartier, who was running Cartier London, often travelled, and would return with many exquisite gems to be added to the Cartier jewels. These stones could be carved or made into cabochon. Cartier was the first to create these new colour and gem combinations. In the 1970s the style was named Tutti Frutti.
Contrast and Colour comes into Vogue

The Collier Hindou
Fransesca Cartier Brickell speaks about this necklace in her book “The untold story of the family behind the jewellery empire, The Cartiers”. The necklace belonged to Daisy Fellowes, the heiress to the Singer sewing machine. She had this necklace commissioned, using her own stones. It was designed to be tied at the back with a black silk cord, as would Indian jewels be. However, the big difference here is the use of sapphire, thought to bring bad luck in India. This is a statement of combining far away travels and traditional Western European gems. His daughter, the Comtesse of Casteja, inherited the necklace and in 1991 it was sold at Sotheby’s for $2,655,172. It was a world record for an Art Deco piece of jewellery sold at auction.
The Constant Desire for Exceptional Jewels

Tutti Frutti ruby, sapphire, emerald, diamond and enamel bracelet, by Cartier, circa 1930
The meandering vines, set with carved rubies, emeralds, sapphires, calibré-cut onyx, black enamel and diamonds is the perfect marriage of West meets East, a perfect artful arrangement. It belonged to an American family and had been in the family for 30 years. It came up for sale at Sotheby’s on 28th April 2020, during the pandemic. It was presented online only, during a four-day sale, during which five bidders competed to purchase the bracelet. Its estimate was $600-800,000 and sold for $1,340,000. It has become a record for any jewel sold in an online-only auction and any jewel sold at auction in 2020. Sotheby’s stated that it “follows a trend observed across all our global jewellery auctions in 2019 in which more than half of the jewellery buyers place their bids online.” This bracelet also illustrates that demand for such exceptional jewels, even during the most challenging times, will always exist. Cartier’s exceptional savoir-faire is timeless.