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Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure ... De Beers is currently the world’s largest operator of diamond production facilities (mines) and distribution channels for gem-quality diamonds. There are three main types of diamond mining: Pipe mining (primary deposits) consisting of open-pit mining and underground mining; Alluvial mining (secondary deposits); Marine mining. The most familiar uses of diamonds today are as gemstones used for adornment, and as industrial abrasives for cutting hard materials. The markets for gem-grade and industrial-grade diamonds value diamonds differently.
