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.
Millennium Star
The Millennium Star is a diamond owned by De Beers. At 203.04 carats (40.608 g), it is the world's second largest known top-color (grade D, i.e. colourless), internally and externally flawless, pear-shaped diamond.