The canadian mine is co-owned by De Beers and Mountain Province Diamonds.
In addition to being the largest gem-quality diamond found since mine opened two years ago, it is the fourth largest stone found there overall.
“The recovery of this diamond firmly establishes Mountain Province as a reliable producer of exceptional, high-quality Canadian diamonds in very large sizes and bodes well for the future discovery of similar gems,” Reid Mackie, the company’s vice president of diamond marketing, said in a company statement.
Mountain Province said the diamond will be presented for sale at the company’s upcoming rough diamond tender in Antwerp, with viewings scheduled to be held there June 11 to 22.
Gahcho Kué, located in Canada’s Northwest Territories is the largest diamond mine worldwide to open in the last 13 years. It is expected to produce about 54 million carats of rough diamonds over lifespan.
Mountain Province owns 49 percent of the mine while De Beers holds the remaining 51 percent. Next year, Gahcho Kué will become De Beers’ only remaining active diamond mine in Canada following the planned closing the Victor and snap lake mines.
