An uncut onyx is the second rarest gem in Old School RuneScape, behind zenyte. It can be cut with a chisel at level 67 Crafting, granting 167.5 experience. This makes a cut onyx, which can be used to make very powerful jewellery. ... Sell Price Profit / loss XP/Craft XP/Hour Coins/XP 67 Uncut onyx: 2,205,391: Onyx: 2,079,595: −125,796: 167.5 ...Web