
There are a limited number of diamond mines currently operating in the world. Diamonds are also prospected in dispersed alluvial deposits, where diamonds have been eroded out of the ground, deposited, and concentrated by water or weather action. There is also at least one example of a heritage diamond mine (Crater of Diamonds State Park). Due to the increasing competition from artificial diamonds, the majority of mines listed below are not in production.
In South Kalimantan, Borneo: