The Cullinan Diamond Mine, located in South Africa, is famous for producing some of the world's largest diamonds. It was discovered in 1902 and has since yielded numerous significant gems, including the Cullinan Diamond, which weighed an astonishing 3,106 carats before it was cut. The mine operates as an underground facility and is known for its rich deposits of gem-quality diamonds. It continues to be an important site for diamond mining, contributing to the global diamond supply and attracting interest from gem enthusiasts and investors alike.