Brilliant-cut D-colour (Finest White) Flawless Diamond. Weighing 84.37 carats, it is the largest brilliant-cut diamond of top quality to ever appear at auction and is estimated at $12-16 million (CHF 15-20 million). © Sotheby's Images.

GENEVA.-Sotheby’s is delighted to announce that on November 14th, 2007, in its sale of Magnificent Jewels in Geneva, it will offer a magnificent Brilliant-cut D-colour (Finest White) Flawless Diamond. Weighing 84.37 carats, it is the largest brilliant-cut diamond of top quality to ever appear at auction and is estimated at $12-16 million (CHF 15-20 million).
In addition to its extraordinary carat weight, unprecedented for a brilliant-cut of this quality at auction, the diamond has also received the highest possible grading from the GIA, whose report no. 15692749 states that the stone is D-colour, has Flawless Clarity and that its cut, polish and symmetry have all been graded excellent. Lire la suite http://www.artdaily.com/section/news/index.asp?int_sec=2&int_new=21974