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.
Great Chrysanthemum Diamond
The Great Chrysanthemum Diamond was discovered in 1963 at the Kimberley Mines in the Northern Cape province of South Africa. Weighing in at 198 carats, the rough diamond is one of about only 300 diamonds in the entire world which weigh in excess of a hundred carats. Julius Cohen, one-time protégé of Harry Winston and custodian of the Hope Diamond, purchased the rough stone from its original owners, saving it from the fate of being cut in two. It was Cohen who christened the stone the Great Chrysanthemum, after attending the Chrysanthemum Ball in San Antonio, Texas. When Cohen later learned through Ms. Craggett, his assistant, that the word Chrysanthemum meant "gold flower" in Greek, Cohen made it official.