Dominion Diamond Mines Dominion Diamond Mines Dominion Diamond Mines (formerly known as Dominion Diamond Corporation, Harry Winston, and Aber) is a Canadian specialist diamond mining company. The company holds a 40% stake in the Diavik Diamond Mine Project. Production at the Diavik Diamond Mine, Canada's second diamond mine, is operated by Dominion Diamond Mines' joint venture partner, Diavik Diamond Mines Inc., a subsidiary of Rio Tinto Group. The mine began producing diamonds in November 2002. In 2012 the company purchased all of BHP Billiton's diamond assets; the primary asset is the Ekati Diamond Mine, which is adjacent to the Diavik Mine. Diavik and
Victor Diamond Mine crater facies and hypabyssal facies, and is considered to have a highly variable diamond grade. It is an open-pit mine; the equipment there is 100 tonne trucks, large front-end loaders, bulldozers and other necessary support equipment used in the mining operation. The annual production rate is 2.7 million tonnes a year, which comes to about 600,000 carats a year in diamond grade. There is year-round access via air travel and only seasonal access over land depending on whether the weather permits travel. On the property are warehouses for storage, a processing plant, workshops, offices, fuel storage facilities, pit-dewatering machinery and