Sotheby’s To Auction Rare Diamond Estimated to Sell for Up to $55 Million

Sotheby’s will auction one of the world’s rarest stones on November 11th, a rare vivid blue diamond nicknamed the Blue Moon diamond.

The Blue Moon Diamond is a 12.03 carat, internally flawless stone, and was named after the saying “once in a blue moon” for its particularly blue color.

“While any diamond with natural blue coloration is a rare discovery, some are so exceptional that they emerge only once in a lifetime. The Blue Moon Diamond is one of those remarkable occurrences,” said the Gemological Institute of America of the diamond, calling the color so notable that it was “likely to have never before been seen within such a large diamond or any gemstone.”

The stone is estimated to sell for anywhere between $35 to $55 million, with the current world record for a blue diamond is at $32 million, a 9.75 carat stone called “The Zoe Diamond” that sold in 2014.

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