Black diamond The Enigma, largest ever cut, sells for £3.2 million

The rare black, or carbonado, diamond is believed to have been created when a meteorite or an asteroid hit Earth more than 2.6 billion years ago.

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

Enigma Black Diamond Sells For $4.3 Million At Auction

Extremely Rare $7M Black Diamond Goes to Auction, Believed to Come from Outer Space - autoevolution

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

Black diamond, largest ever cut, sells for £3.2 million

The Enigma' - a 555.55 carat Fancy Black Diamond, The Enigma: 555.55 Carat Fancy Black Diamond, 2022

Black 555.55-carat diamond dubbed 'The Enigma' sells for £3.1 million at auction

Billion-year-old, 555-carat Enigma diamond with 55 sides sold to mystery buyer

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

A Massive Black Diamond Is Heading to Auction Next Month - InsideHook

The Enigma,' a 555-Carat Black Diamond, Could Sell for $6M at Auction

Black diamond, largest ever cut, sells for £3.2 million