Black Diamond

A mysterious black diamond named 'The Enigma' is set to be sold at an auction, at Sotheby’s in Beverly Hills, California. The gem is called carbonado diamond and weighs 555.55 carats. The diamond will be auctioned from February 3 to 9 and Cryptocurrency will also be accepted as payment. It is the largest faceted Fancy Black Diamond to be auctioned and has previously been listed in the 2006 Guinness Book.