Auction record broken for price per carat for any gemstone by a Blue diamond

A beautiful and very rare Fancy Vivid Blue diamond, set as a ring, has been sold by Sotheby’s auction house in Geneva for US$4,955,097, setting a new world record price per carat for any gemstone at US$1,328,444 per carat. In October 2007, Sotheby’s sold a 6.04 carat Fancy Vivid Blue diamond in Hong Kong for US$7.98 million, giving it a per-carat price of US$1,321,495.

“We’ve had great success with important stones, with period pieces, and particularly with jewels of noble provenance. In addition to achieving a new world record price per carat for any gemstone at auction for the Fancy Vivid Blue diamond, we also sold 66 percent of lots above their high estimate – an impressive figure,” David Bennett, Chairman of Europe and the Middle East, Sotheby’s International Jewellery department.