What are the Biggest Diamonds? A South African mine uncovered a diamond in 1905 that weighed an incredible 3106 carats, which is more than a pound, making it the largest diamond ever discovered. Named ¨the Cullinan¨ in honor of the mine´s owner Sir Thomas Cullinan, the gem was eventually cut into 9 huge diamonds and over 100 smaller diamonds. The three largest cuts of the Cullinan eventually became part of King Edward´s royal crown, and can be seen...
