A massive black diamond believed to come from space is going on sale
Written by Isabelle Jani-Friend, CNNA 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 Earth. A natural faceted black diamond of this size is an "extremely rare occurrence," according […]