Forbes: 15-Carat ‘De Beers Blue’ Diamond Fetches $57.4 Million in Auction

As reported by Forbes, the ‘De Beers Blue’, the largest vivid blue diamond ever sold at an auction, fetched approximately $57.4 million which is about $3.8 million per carat, making it one of the highest prices ever achieved for a diamond at auction.

The De Beers Cullinan Blue came from a 39.34-carat rough diamond that was discovered at the Cullinan mine in 2021 by the Petra Diamonds mining company. Diamond mining giant, De Beers, and diamond manufacturer, Diacore, a master diamond cutter, purchased the rough for $40.18 million in July 2021. They worked together to cut and polish the rough into its finished form.

Nir Livnat, executive chairman of Diacore, said: “We were honored and privileged to work on such a unique and rare gem. This is undoubtedly one of the most amazing blue diamonds in existence “.

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