Out of This World: 555.55-Carat Black Diamond Lands in Dubai

An employee of Sotheby's Dubai presents a 555.55 Carat Black Diamond “The Enigma” during the World Unveiling of Major auction highlight at Sotheby's Dubai gallery, in Dubai, United Arab Emirates, on Jan. 17, 2022. Kamran Jebreili/AP Photo

DUBAI, United Arab Emirates—Auction house Sotheby’s Dubai has unveiled a diamond that’s literally from out of this world.

Sotheby’s calls the 555.55-carat black diamond—believed to have come from outer space—“The Engima.” The rare gem was shown off on Monday to journalists as part of a tour in Dubai and Los Angeles before it is due to be auctioned off in February in London.