Cullinan Diamond
The Cullinan Diamond is the largest gem-quality rough diamond ever found, weighing , discovered at the Premier No. 2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the mine's chairman.
Canadian diamonds
Located approximately 190 miles north of Yellowknife, the Diavik Diamond Mine is one of the largest open pit diamond mines in the world (according to production) and currently produces around 8 million carats annually. The mine is currently in a transitional shift from open pit to underground mining, and the life span of the mine is expected to be 16 to 22 years from its opening in 2003.