An Uncut dragonstone is an uncut gem that is used in the crafting skill. Uncut dragonstones can be cut at level 55 Crafting by using it with a chisel, giving 127.5 Crafting experience. Dragonstones can then be used to create dragonstone jewelry.
Previously the crystal chest located in Taverley would always yield one uncut dragonstone when used with a crystal key, however the chest was rendered inoperable by a bug which was never fixed. The only method of obtaining this gem uncut is to trade with another player. Cut Dragonstones can be received as a rare drop from the King Black Dragon, Black Dragon, Fire Giant, or Black Demon.