55555carat

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…

Auction house Sotheby’s Dubai has unveiled a diamond that’s literally from out of this world. Sotheby’s calls the 555.55-carat black diamond — believed to have come from outer space — “The Enigma." The rare gem was shown off on…