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.
Nizam Diamond
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Nizam Diamond is believed to have been the most famous diamond in the 1800s. It is named after its original owner HEH Mir Osman Ali Khan, the last Nizam of Hyderabad. There are tales about its size, around . The story goes back to the rulers of Golconda, and is believed to have been found at Kollur Mine. The precious stone gets its name from the Prince Nizam of Hyderabad.