Arctic Canadian Diamond Company (formerly known as Dominion Diamond Mines, Dominion Diamond Corporation, Harry Winston, and Aber) is a Canadian specialist diamond mining company. Aside from its corporate office in Calgary, Arctic Canadian also has cleaning and sorting facilities in Yellowknife and Mumbai and a marketing office in Antwerp, Belgium. In 2012 the company purchased all of BHP's diamond assets; the primary asset is the Ekati Diamond Mine, which is adjacent to the Diavik Mine.