Photos of Rare 15 Carat Blue Diamond That Sold For A Staggering $57.5 million

A rare 15 carat diamond has been sold for $57.5 million at an auction in Hong Kong.

It was revealed further that the diamond is the world's largest blue diamond.

The rare 15 carat masterpiece named "The De Beers Cullinan Blue," sold at auction house, Sotheby's in Hong Kong after an eight-minute bidding war among four hopeful buyers, according to Sotheby's.

The winning bid, which passed its high estimate of $48 million, came from an anonymous buyer by telephone.

The rare diamond was found in South Africa's Cullinan mine in 2021, and it has attained the highest rankings that colored diamonds are judged by.

According to a statement from Sotheby's, the Gemological Institute of America (GIA) categorized the jewel as "fancy vivid blue" -- the top color grading, which has been awarded to no more than 1% of blue diamonds submitted to the organization.

Sotheby's added that only five gems over 10 carats have ever appeared at auction. None have ever been over 15 carats, "making the appearance of this flawless gem a landmark event in itself."

With a final price of $57,471,960, The De Beers Cullinan Blue just narrowly missed setting the record for the most expensive blue diamond ever to sell at auction. That title is still held by the 14.62-carat "Oppenheimer Blue," which sold in 2016 with a final price of $57,541,779, a difference of of $70,000.

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