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Blue Diamond Cartier Ring Could Fetch $25 Million at Sotheby's

The Sky Blue Diamond will be displayed in London on Thursday through Monday before a sale in Geneva on November 16.

The Sky Blue Diamond | Source: Sotheby's

Associated Press

11 October 2016

LONDON, United Kingdom — A diamond ring that's the ultimate in bling is set to go under the hammer, with an estimated price of $15 million to $25 million.

Sotheby's auction house says the Cartier ring holds an 8.01 carat blue stone named the Sky Blue Diamond. It will be displayed in London on Thursday through Monday before a sale in Geneva on November 16.

David Bennett, chairman of Sotheby's jewellery division, said Tuesday that the diamond was a "wonderfully clear celestial blue, presented in an extremely elegant square emerald cut." He said it would "captivate all collectors of exceptional gemstones."

In May, the 14.62 carat "Oppenheimer Blue" diamond sold for more than 56.8 million Swiss francs ($57.6 million), including fees, crushing the previous record for the most expensive diamond ever sold at auction.

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