Rare black diamond from 'outer space' goes on sale and can be bought with cryptocurrency

‘The Enigma’ is a 555.55-carat diamond, heavier than both the Great Star of Africa and the Golden Jubilee

This huge black diamond just sold for $4.3 million. No one knows where it came from.

Enigma Black Diamond: 555.55-Carat Gem Likely from Outer Space Now for Sale

Rare 555.55-Carat Black Diamond To Go To Auction

HEX's Richard Heart Wins Black Carat Diamond Worth $4.3 Million at Sotheby's Auction

Black diamond believed to be from outer space could fetch $6.8M at auction: 'Exceptionally rare

Black diamond THE ENIGMA for auction, Mystery Black diamond from space

Space news: 'Out of this world' 555-carat diamond dubbed 'Enigma' on sale in UK for £5m, Science, News

Is This Genuine? : r/meteorites

Sotheby's Is Selling an Immense Black Diamond It Claims Came From Outer Space

The Enigma: Billion-year-old black diamond sold for £3.16m