A stone, which may become the largest diamond in the world, has been discovered by miners in Letseng Mine in Lesotho (South Africa). The mine is already famous for delivering three of the world’s largest diamonds: the 603-carat Lesotho Promise, the 493-carat Leteng Legacy and the 601-carat Lesotho Brown. The massive 478 carat diamond found recently is the 20th largest rough diamond ever discovered.
The diamond, has the potential to yield a 150 carat cut stone, and could sell for tens of millions of dollars. A similar but smaller-sized rough stone has recently been valued at $12 million. Preliminary examination of the diamond indicates that stone has a remarkable clarity and color. It would be bigger than the 105 carat round-cut Koh-i-Noor diamond, which is part of the British Crown Jewels but still smaller than the Cullinan diamond discovered in 1905, which was 3,106 carats uncut and yielded a teardrop shaped diamond of 530 carats called the Great Star of Africa.