A 555.55-carat black diamond believed to come from space is going on sale
Isabelle Jani-Friend, CNN A 555.55-carat black diamond that is truly from out of this world has been unveiled by auction house Sotheby’s Dubai. The rare gem, which Sotheby’s has dubbed “The Enigma,” is believed to have come from outer space — either created from a meteoric impact or from a “diamond-bearing” asteroid that collided with
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