Cullinan Diamond Mine in Cullinan, Gauteng
The Cullinan Diamond Mine, also known as the Premier Diamond Mine, has uncovered some of the largest diamonds in the world today and the mine lies over one of the biggest kimberlite pipes in the world (kimberlite is named after Kimberley in South Africa and refers to a type of potassic volcanic rock known to contain diamonds).. The Cullinan Diamond Mine is the third richest diamond producing