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.
Kazanjian Red Diamond
The Kazanjian Red Diamond is a 5.05-carat emerald-cut red diamond. Red diamonds are the rarest type of colored diamond. The diamond measures on the sides, and in depth. It is the second-largest red diamond ever found, behind only the 5.11-carat Moussaieff Red Diamond.