An Uncut diamond is an uncut gem that is used in the Crafting skill. Uncut diamonds can be cut at level 43 Crafting by using it with a chisel, yielding 107.5 experience. Diamonds can then be used to create diamond jewelry. Uncut diamonds can be obtained randomly while Mining any rock, from caskets, and through monster drops. Wearing a Charged Dragonstone Amulet increases the odds of getting gems while Mining, including diamonds. Diamonds can also be obtained more efficiently by Mining gem rocks in Shilo Village.
All monsters with rare drop table including blue dragons, chaos druids and skeletons. Shadow Warriors have relatively greater chance to drop them.