Sotheby’s Magnificent Jewels and Noble Jewels, Geneva Sale to be held on November 15, 2017, is a landmark event as it coincides with the 10th Anniversary of the Auction House’s dedicated and themed sale of Noble Jewels. To mark this event the auction house has lined up a series of superb noble jewels with important provenance to be offered at the auction, lead by the famous “Donnersmarck Diamonds,” two magnificent Fancy Intense Yellow diamonds, weighing 82.47 and 102.54 carats, formerly in the Collection of the Princely Family von Donnersmarck.
Other noble treasures that will appear at the auctions include jewels from the collection of Princess Mathilde of Württemberg and the emerald and diamond necklace from the collection of the Duchess of Berry.
However, the lot that will take center stage at the Magnificent Jewels and Noble Jewels sale in Geneva on November 15, 2017, will be “The Raj Pink,” diamond, the world’s largest known Fancy Intense Pink diamond, with a clarity-grade of VS1, weighing 37.30 carats, mounted on a platinum ring with an estimate of CHF 19,250,000 – 29,000,000 (USD 19.7 – 29.7 million). The Raj Pink rough diamond discovered in 2015, was transformed by a master cutter, after an extensive study that lasted for over an year, into an exceptional cushion-modified brilliant cut diamond, that brought the diamond’s innermost beauty into full display. GIA which certified the diamond, described the “Raj Pink” as “an astonishing stone with a very bright and ravishing fancy intense pink color.” It further stated “For a diamond to display strong, unmodified pink color like that observed in “The Raj Pink” is rare, particularly at so considerable a weight.” The discovery of a gem-quality pink diamond of any size is an extremely rare occurrence. Of all diamonds submitted to the GIA each year, less than 0.02% are predominantly pink. The “Raj Pink” diamond was unveiled in London on 13th October, 2017 and was displayed alongside other highlights from the Magnificent Jewels & Noble Jewels sale, until 17th October, 2017.
Among other colored diamonds that will be on offer at the auctions is an outstanding Internally Flawless, Fancy Vivid Blue diamond weighing 7.41 carats, mounted as a ring by Moussaieff. The oval modified brilliant-cut, fancy vivid blue diamond is the centerpiece of the ring, highlighted by a frame of marquise-cut pink diamonds. An estimate of CHF 13,450,000 – 17,300,000 (USD 13.7 – 17.7 million) is placed on this superb fancy vivid blue diamond ring.
Two magnificent Fancy Intense Yellow diamonds weighing 82.47 and 102.54 carats, mounted on a pendant, known as the “The Donnersmarck Diamonds” is a highlight of Noble Jewels, as well as of colored diamond lots. The “Donnersmarck Diamonds” an 82.48-carat pear-shaped fancy intense yellow diamond and a 102.54-carat cushion-cut fancy intense yellow diamond, appeared at the Sotheby’s Noble Jewels Sale at Geneva on May 17, 2007, as two separate lots 437 and 438 and registered hammer prices of USD 4.7 million and USD 3.2 million respectively, a total of USD 7.9 million, being paid by the same anonymous buyer for the two stones, which was almost double the pre-sale estimate of USD 4 million for both stones. In 1888 the two stones were mounted as a pendant in a single setting for Princess Katharina Henckel von Donnersmarck.
Among the colorless diamond highlights is a D-Color, VS1 clarity, square emerald-cut diamond weighing 22.76 carats mounted on a ring with an estimate of CHF 1,200,000 -1,800,000 (USD 1,235,000 – 1,855,000). This exceptional emerald-cut diamond is potentially Internally Flawless after polishing.
A pair of diamond earrings set with a matching pair of D-color, Flawless clarity, oval modified brilliant-cut diamonds weighing 10.50 and 10.51 carats, is another significant colorless diamond lot of the sale. An estimate of CHF 2,050,000–3,050,000 (USD 2,100,000 – 3,100,000) is placed on this lot.
An Emerald and Diamond Necklace and a matching pair of earrings designed in the first-half of 19th-century is another noble jewelry lot, formerly from the Collection of the Duchess of Berry, one of the most famous and fascinating aristocratic figures of the 19th century, who led an adventurous and courageous life in the turmoil of French politics. The stunning necklace is set with five exquisite, pear-shaped Colombian emeralds hanging as fringes from the front half of the necklace set with circular-cut diamonds. An additional two rectangular step-cut emeralds are placed at the point of suspension of the central fringe and on the clasp situated behind. The matching pair of earrings are each set with a square step-cut emerald, highlighted by a row of circular-cut diamonds, and a pendant consisting of a smaller rectangular step-cut emerald and a larger cushion-cut diamond hanging from below. An estimate of CHF 585,000–785,000 (USD 600,000 – 800,000) is placed on this necklace.
Among the signed jewels from renowned jewelry houses are an “Important Burmese sapphire and diamond ring by Van Cleef & Arpels.” The ring is set with an impressive cut-cornered rectangular step-cut Burma blue sapphire with a rich “Royal Blue” color, weighing 45.74 carats, flanked on either side by tapered baguette-cut diamonds. An estimate of CHF 680,000 – 870,000 (USD 700,000 – 900,000) is placed on this lot.
Another significant signed lot is a “Ruby and diamond bracelet, Bulgari, Circa 1930.” This exquisitely designed Art Deco jewel, created by Bulgari around year 1930, features stunning cabochon-cut Burma rubies and circular-cut and baguette-cut diamonds, arranged in a geometric pattern characteristic of the period. This is an extremely fine example of the pieces Bulgari were designing from the end of the 1920s onwards.
Another stunning signed lot is a creation by Cartier, also from the 1930s, titled, “Emerald and diamond necklace, Cartier,” with an estimate of CHF 345,000 – 535,000 (USD 350,000 – 550,000). This necklace is a very fine example of Cartier’s distinctive designs of the 1930s, a line of delightfully intricate geometric motifs in which diamonds support two superb emerald briolettes.