Catoca pit, Angola. Angola's largest mine produced 6.5 million carats 2012 from 10 million metric tons of ore, generating revenue of $575 million Catoca is owned by Angola’s state-owned diamond company Endiama which holds a 32.8 %. Alrosa of Russia also has 32.8 %, a venture between China and state oil producer Sonangol owns 18% and Odebrecht SA of Brazil has 16.4%.
The Mirny Diamond Mine, Russia The Mirny Diamond Mine is an open pit diamond mine. It is located in Mirny, Eastern Siberia, Russia. The Mirny Diamond Mine is 525 meters deep and has a diameter of 1200 meters.