507-Carat Rough Diamond Found
The Cullinan Mine has yielded some of the world's great diamonds including the largest "gem-quality" stone ever recovered, the "Cullinan," 3,106 carats rough, and was the source for the Golden Jubilee, at 755 carats rough, and the Centenary, at 599 carats rough. Cullinan also produced the piece of rough that became the Taylor-Burton diamond, a stone that is 69 carats polished. The diamonds will be analyzed by a team of experts and then the long process of determining how to best cut them can begin.
[via National Jeweler]