The 813 caret diamond was discovered in Lucara's Karowe
mine in Botswana .A caret of the diamond sale was for $77, 649.The was sold to a Dubai-based firm for $63.1 million.The canada-based Lucara's diamond is set to retain 10% interest in the net profit received from the resultant polished diamonds from the stone. It referred to the diamond as "The constellation ".The constellation has set the record as the world's most expensive rough diamond.
