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.
Khwaja Alimullah
The 26-carat (5.2 g) oblong table-shaped diamond is largest and most precious jewel stone in Bangladesh. It is believed to be quarried in a south Indian mine, like the Koh-i-Noor. It is set in the centre of a gold armlet, with ten 5-carat (1 g) oval shaped smaller diamonds around it, used by the Nawabs of Dhaka, who also used as it an ornament on the turban. It is now preserved in a vault of Sonali Bank.