The mysterious black diamond called "Enigma" weighing 555.55 carats was sold at auction for £3,161,000 ($4,292,322).
The billion-year-old gem was expected to sell for more than £4.40 £ million.
Sotheby’s auction officials said that “the buyer has decided to use cryptocurrency for the purchase.” Sotheby’s did not disclose the name of the buyer.https: //twitter.com/Sothebys/status/1491469014337572866?ref_src=twsrc%5Etfw
Cryptocurrency entrepreneur Richard Hart claimed on social media that he bought Enigma; .
He noted that after the transaction, the gem will be renamed “HEX.com diamond”, in connection with the blockchain platform he founded.