Art Deco Jewellery from Cartier and Lacloche along with an Important Private Collection of Timepieces feature in Bonhams London Jewels Sale this December

An outstanding selection of Art Deco jewellery and timepieces from the most coveted jewellery houses - including Cartier and Lacloche Frères - along with jewels with an impressive provenance will go under the hammer at Bonhams London Jewels sale next month (4 December 2019).

Leading the sale is a spectacular Art Deco Aquamarine and Diamond Necklace by Cartier, dated circa 1940, estimated at £100,000 - 150,000, and a pair of Art Deco Aquamarine and Diamond Drop Earrings, also by Cartier, circa 1935, estimated at £40,000 - 60,000.

Emily Barber, Bonhams UK Jewellery Director, says: "These splendid jewels not only typify the geometric Art Deco style but are also from the 1930s, the decade Cartier began to create stunning aquamarine jewels that were particularly popular with their British and American clients."

Two further sale highlights that are anticipated to capture interest from buyers globally are by Lacloche Frères, a name synonymous with creating some of the finest and most creative jewellery in the Art Deco period. 

Emily Barber explains: "Lacloche Frères were one of 30 out of 400 companies selected to exhibit at the seminal Exposition des Art Décoratifs in Paris in 1925. Their stand was in the centre of the room, flanked by Cartier and Van Cleef & Arpels.  During the exhibition, objets and innovative jewellery created by Lacloche Frères received great acclaim, with the company winning a Grand Prix for their display of fabulous jewels.

"Lacloche Frères pieces are always in demand; the jewels they made during the Art Deco period are quite simply exquisite."

Bonhams will offer An Art Deco Diamond, Enamel and Gem-Set Picture Bracelet attributed to Lacloche Frères, estimated at £120,000 - 150,000.  Dated circa 1925, this bracelet is an example of the fascination with exoticism that had swept through French creative design in the early 1920s.  Its articulated panels are pavé-set with diamonds, overlaid with highly stylised cherry blossom motifs, with black enamel branches, cabochon ruby blooms and cabochon emerald leaves. It is an elegant example of the superb style and craftsmanship that Lacloche Frères is associated with. 

Also from the same maker is An Art Deco Diamond, Onyx and Enamel Brooch.  Dated circa 1920, it is designed as a 'broche poigneé' (drawer handle), pavé-set throughout with old brilliant and single-cut diamonds and cabochon onyx studs.   Bearing resemblance to the black and white 'panther skin' jewels, in diamonds and onyx, produced by Cartier during the 1920s, it is estimated at £30,000 - 50,000.

One of the largest private collections of Art Deco clocks to be presented for sale
A private collection 24 of Art Deco timepieces, 22 of which are by Cartier, will feature in the sale.  Dating from 1908 through to the end of the Art Deco period, these timepieces represent the pinnacle of luxury, elegance and craftsmanship that Cartier, and a select few major Parisian jewellery houses, were associated with in the early decades of the 20th century.

Emily Barber comments: "The Art Deco period was a time when Cartier garnered its pre-eminent reputation for producing the finest clocks, and for being a trailblazer of design in both jewellery and jewelled accessories."

Louis Cartier's collaboration with master clockmaker Maurice Couët helped catapult Cartier's table clocks to the highest level of inspired craftsmanship, sophistication and refined beauty.  One of the most prized lots in the collection is An Art Deco Rock Crystal, Gold, Agate, Enamel and Diamond-Set 'Mystery Clock by Cartier, 1919.  This is an extremely rare and early example of the first type of mystery clock known as 'Model A', featuring a number of illusory mechanisms and 'mystery' is in the hands appearing to float in space without any connection to the movement.  It has a pre-sale estimate of £150,000 - 250,000.

Another exceptionally rare piece which features in this collection is A Rock Crystal, Silver, Corallium Rubrum and Black and Red Lacquer Demi-Mystery Barometer by Cartier, 1930. This is thought to be the only demi-mystery barometer produced by Cartier and is estimated at £30,000 - 40,000. This barometer is in the style of the second mystery clock model produced by Cartier, where a single axle runs up the main shaft. Its dodecagonal dial is mounted on a fluted rock crystal column and stepped black and red lacquered silvered base. As well as indicating weather, it also indicates atmospheric pressure relative to sea level.

Of royal provenance, An Art Deco Nephrite and Gold Grande Sonnerie Desk Clock by Cartier, circa 1925, is expected to catch the eyes of buyers in Bonhams' pre-sale previews.  This clock belonged to Prince George, Duke of Kent, the fourth son of King George V and Queen Mary, and younger brother of King Edward VIII and King George VI, and has a pre-sale estimate of £50,000 - 80,000.

Emily Barber comments: "Cartier's designs and foresight, combined with the exceptional talents of enamellers, clockmakers, lapidaries, and stone setters, helped to produce the finest and most sought-after clocks and treasures of the time.  

"This impressive collection serves as a point of reference in the transition from the earlier, softer, 'Garland' Style and colourful guilloché enamelling techniques, to the use of geometric form, bold colour, and exoticism of the Art Deco."

Further highlights of the auction includes:

• A Historic Emerald, Rock Crystal and Diamond Necklace by Cartier, 1912, from The Collection of Vita Sackville-West, the gifted poet, novelist, writer and renowned gardener.  Separate press release to follow. 
• Ten pieces of jewellery from the private collection of international bestselling author Barbara Taylor Bradford OBE. Separate press release to follow. 
• A Diamond Single-Stone Ring by Boodles estimated at £200,000 - 300,000. The Ashoka-cut diamond, weighing 6.42 carats, is D colour and Internally Flawless.  The Ashoka-cut displays an additional five facets to the 57 facets of brilliant-cuts, requiring the rough diamond to be larger and longer than average, and it is known for its typically larger 'spread', enabling the polished diamond to appear larger when viewed face-up.
• An Emerald and Diamond Ring estimated at £160,000 - 180,000. The step-cut emerald, weighing 20.24 carats, is of Colombian origin with indications of minor clarity enhancement. 
• A Burmese Sapphire and Diamond Ring estimated at £150,000 - 200,000.  The step-cut sapphire weighs 8.20 carats and is of Burmese origin with no indication of heat treatment.
• A Fancy-Coloured Diamond and Diamond Ring by Graff estimated at £140,000 - 160,000.  The radiant cut diamond is a Fancy Intense Yellow colour and SI1 clarity.
The auction, which takes place on 4 December 2019, will offer a total of 168 lots.  To access the catalogue online please click here:  Bids can be placed online on Bonhams' website, via telephone, in writing, and also in person on the day of the respective sale.

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