Auctions and Exhibitions

One of the Most Valuable Blue Diamonds Ever to be Offered at Auction


In this video Frank Everett, Sotheby’s foremost luxury expert, introduces The De Beers Blue, an extraordinary natural treasure. This 15.10 carat step-cut blue diamond has been cut from an exceptional rough stone discovered in April 2021. In its masterfully crafted, newly formed state, it now re-emerges as the largest vivid blue diamond ever to appear at auction and the largest internally flawless step cut vivid blue diamond that the Gemological Institute of America (GIA) has ever graded. Sotheby’s is honored to present this rare blue diamond at a live auction in Hong Kong, 27 April 2022.

More from Sotheby's

Stay informed with Sotheby’s top stories, videos, events & news.

Receive the best from Sotheby’s delivered to your inbox.

By subscribing you are agreeing to Sotheby’s Privacy Policy. You can unsubscribe from Sotheby’s emails at any time by clicking the “Manage your Subscriptions” link in any of your emails.