Canadian jeweler Birks will sell the "North Star", the largest Canadian diamond ever extracted, for $3.7 million. The North Star, a round brilliant diamond, weighs 15.10 carat, measures 15.87 by 9.77mm and was cut from a 55.07-carat rough stone extracted from the Diavik mine in the Northwest Territories just seven months ago. The diamond has a D colour grade and S12 clarity with slight inclusion. This diamond beats out a 35 carat rough diamond mined in 2013 near Attawapiskat at the DeBeers Mine which was cut down to about 15 carats, for the title of biggest diamond from Canada.
The Diavik Diamond Mine is Canada’s largest diamond mine in terms of carat production. The mine is operated by Diavik Diamond Mines Inc., a subsidiary of Rio Tinto plc.