A crushed gem is an accidental product that is occasionally made when using a chisel on an uncut semiprecious gem, such as opals, jades and red topazes. 5 Crafting experience is granted when a gem is crushed this way (3.8 for uncut opal). Gems can also be deliberately crushed by using a hammer on a semiprecious gem.
It is used during Fairy Tale I - Growing Pains to make the magic secateurs and Some Like It Cold to create costumes for Ping & Pong.
Crushed gems used to be tradeable in the Grand Exchange, however this was removed.
Disassembly
| Disassembly XP | 0.1 |
|---|---|
| Item quantity required | 1 |
| Material count | 1 |
| Base junk chance | 98.9% |
| Possible materials | |
| Often | |
 Simple parts | 99% |
| Rarely | |
 Variable components | 1% |
Trivia
- Previously, non-members could use a hammer on F2P gems to get a crushed gem, which was named 'Member's object'. This was later removed.
| Semiprecious | |
| Precious |
 Sapphire (Uncut) Emerald (Uncut) Ruby (Uncut) Diamond (Uncut) Dragonstone (Uncut) Onyx (Uncut) Hydrix (Uncut • Incomplete) Alchemical onyx |
| Quests and Tasks |
 Blood diamond Ice diamond Smoke diamond Shadow diamond Enchanted emerald Small gemstone (Fine) |
| Miscellaneous |
 Crushed gem Enchanted gem Grim gem Mystic jewel Shiny gem |
| Promotional |
 Gem of aspiration Soul gem Raptor gem |
