To cut diamonds in OSRS, you need Crafting level 43 and a chisel. Use the chisel on an uncut diamond in your inventory, and your character will cut it into a diamond.

Quick Scoop

  • Buy or obtain a chisel from a general store or other common shop.
  • Get an uncut diamond from mining, monster drops, gem bags, or other gem sources.
  • At level 43 Crafting , use the chisel on the uncut diamond to cut it.
  • One cut diamond gives 107.5 Crafting XP.

Simple steps

  1. Put the uncut diamond in your inventory.
  2. Make sure you have a chisel.
  3. Use the chisel on the gem.
  4. Select the diamond if prompted, and it will cut automatically.

Uses

  • Cut diamonds are used for diamond bolt tips and some jewelry crafting.
  • They’re also commonly collected for profit or Crafting training.

TL;DR

Need level 43 Crafting plus a chisel ; then use the chisel on an uncut diamond to cut it.