Diamond
An Uncut diamond is a white gem used in Crafting and Fletching. An uncut diamond can be cut by a player with active membership and level 43 Crafting by using a Chisel on it, which makes the uncut diamond into a diamond and gives you 432 Crafting experience. After cutting it once you can cut it once again to turn it into 15 diamond bolt tips which grants you another 432 Crafting experience.
Uncut diamond can be obtained in several ways. Players can get them randomly while opening Caskets and Mining Ores, by mining the Gem rocks on Island of Neitiznot, as drops from Monsters or receiving them as a reward from Random Events. Also, Uncut diamond can be obtained by training Thieving at the Gem stall located in Al-Kharid and Ardougne, this requires Thieving level 80.