Extraordinary auctions of blue and pink diamonds in Geneva at Sotheby's and Christie's. it “Sky Blue Diamond“, supreme piece of an auction organized Wednesday evening by Sotheby's in Geneva, it was awarded for 17,1 million dollars (same value in francs). It was valued at between 15 and 25 million, the auction house specifies.
In 2012, the bright blue stone was sold, again at Sotheby's, for 12,8 million dollars.
The stone, 8,01 carats and mounted on a Cartier ring, is of "absolute rarity". Blue diamonds are found only in one mine in South Africa, the Cullinan; and of all diamonds of this kind, only 1% is of a “bright blue”, explained David Bennett, director of the international division of jewelery at Sotheby's.
Sotheby's in recent months has recorded two world records for blue diamonds. In November 2015 he had sold “The Blue Moon of Josephine” for 48,5 million dollars, last May “The Oppenheimer Blue” of 14,62 carats had been sold for 57,5 million dollars.
Also in May in Geneva, Sotheby's sold the largest pear-shaped bright pink diamond ever offered at auction for the record sum of 31,56 million dollars.
Tuesday evening, still in Geneva, Christie's he “beat” for 18,1 million francs un pear-shaped pink diamond of 9,14 carats: the "Fancy Vivid Pink", the second largest stone in its shape and color.
