Uncut opal
An Uncut opal is a beige gem used in Crafting and Fletching. An uncut opal can be cut by a player with active membership and level 60 Crafting by using a Chisel on it, which makes the uncut opal into 15 opal bolt tips and gives you 480 Crafting experience.
Uncut opal can be obtained in several ways. Players can get them randomly while opening Caskets, 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.