In the midst of a vast Arctic tundra is, according to De Beers Canada, a diamond in the rough. About 280 kilometres north of Yellowknife, the Gahcho Kue mine is expected to contribute an estimated $6.7 billion to the Canadian economy.

De Beers opens Gahcho Kue, its third diamond mine in Canada, on Tuesday. Here are a few quick facts about the industry.

Canada's position as a big player in the global diamond industry will be further crystallized Tuesday when it formally opens Gahcho Kue, estimated to be one of the 10 biggest diamond mines in the world.