bluediamond

15-Carat Fancy Vivid Blue Diamond Sells for $57.5M

Hong Kong—The “De Beers Cullinan Blue Diamond” is off the market.   In a single-lot sale at Sotheby’s Hong Kong o...

5-Carat ‘Ai’ Blue Diamond to Sell for $12-15M

  Hong Kong—A 5-carat fancy vivid blue diamond ring will be the highlight of Sotheby’s upcoming jewelry auction in H...

This 12 Carat Blue Is Now the Most Expensive Diamond Ever Sold at Auction

        The Blue Moon, a 12.03 ct. internally flawless vivid blue cushion cut, fetched $48.5 million at the Sotheby’...

Most Valuable Diamond Ever? A 12.03 Carat Fancy Vivid Blue Goes Up for Auction

  On Nov. 11 in Geneva, Sotheby’s will auction the Blue Moon, a 12.03 ct. internally flawless vivid blue estimat...
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