Gems are obtained from mining, trading with other players, and as occasional monster drops. Using the Crafting skill, uncut gems can be cut, combined with precious metals to make jewellery and then enchanted using the Magic skill. Gems can also be cut into gem bolt tips. Gems up to diamond were previously rewards from the removed random events, but still remain as common rewards from Treasure Hunter.
- Monster drops: the statues in Bandos's throne room frequently drop cut gems from sapphire through diamond, making the room popular for some gem hunters who can kill the statues easily. Completion of The Chosen Commander is required for access to the throne room
- Purchasing or stealing them from gem shops identified with a red gem icon on the world map
- Mining gem rocks
- Geodes: obtained while mining
|Uncut lapis lazuli
|Uncut red topaz
Pocket slot items that give a chance of saving a charm when worn while creating Summoning pouches.
- Prior to the Mining and Smithing rework, there was an 1/282 chance of obtaining gems from sapphire to diamond by mining any standard rock. It was even possible to mine multiple gems from the same rock.