Sotheby's expects the diamond to be sold for at least 5 million British pounds ( $6.8 mn). The auction house plans to accept cryptocurrency as a possible payment as well.
Sotheby's Dubai unveils 555.55-carat rare black diamond 'The Enigma' - Culture
Out of This World: 555.55-carat Black Diamond Lands in Dubai - Bloomberg
A rare 555-carat black diamond that was formed around 2.6 billion years ago when an asteroid hit the earth could sell for $5 million. - Luxurylaunches
Enigma: rare 555-carat black diamond unveiled in Dubai thought to be billions of years old
Dubai plans to reduce carbon emissions 30% by 2030: Govt media office - BusinessToday
The Enigma', a 555.55-carat black diamond, is unveiled in Dubai
Enigma: rare 555-carat black diamond unveiled in Dubai thought to be billions of years old
World largest 555.55 carats Black diamond from outer space up for auction - P.M. News
The Enigma,' a 555-Carat Black Diamond, Could Sell for $6M at Auction
Sotheby's Enigma 555.55 Carats Black Diamond
A 555.55-carat black diamond believed to come from space is going on sale