Petra Diamonds
The Cullinan mine continues to produce large stones. The Cullinan Heritage, a white diamond, was discovered in September 2009. This stone was the 19th biggest uncut diamond ever found and was sold in February 2010 to Chow Tai Fook Jewellery for $35.5m, the highest price ever paid for an uncut diamond. The previous record was held by Gem Diamonds' Leseli La Letšeng, which was bought for $18.4m by Graff Diamonds in December 2008.
Mining in Sierra Leone
The largest diamond found in Sierra Leone, and the third largest diamond in the world, was a 969.8 carat (194 g) rough diamond. It was found in 1972 and named the An-al of Sierra Leone.