Blue Diamonds to Lead Sotheby's Auction

RAPAPORT A blue diamond ring estimated at $9 million to $12 million will go under the hammer at Sotheby's Geneva auction on November 15 alongside a roster of rare colored diamonds The rectangular-cut, 5.04-carat, fancy-vivid-blue piece is one of three blue diamonds set to feature at the Magnificent Jewels and Noble Jewels sale The auction will also include earrings containing a 261-carat and a 306-carat diamond with a presale estimate of $8 million to $10 million.

A brilliant-cut, 2.02-carat, fancy-intense-blue, internally flawless diamond valued at $2 million to $3 million rounds out the set Sotheby's will also offer a cushion-cut, 21.19-carat, fancy-light-pink, type IIa diamond estimated at $4.5 million to $6.5 million, and a collection of white diamonds Those include a pear-shaped, 4018-carat, D-color stone with a presale estimate of $25 million to $35 million, and a Harry Winston necklace with nine D-color, internally flawless diamonds valued at $48 million to $58 million.

Sotheby's will preview the jewels from November 10 to 14 at the Mandarin Oriental hotel in Geneva ahead of the auction. . Source