Crushed gem

A Crushed gem is an accidental product that is occasionally made when using a chisel on an uncut semiprecious gem. You can gain 5 exp when a gem is crushed in this way. As of 27 January 2009, the player can also crush a gem deliberately by using a hammer on an Opal, Jade, or Red Topaz.

This item is of very limited use, with the only application coming from the Fairytale I - Growing Pains quest to make the magic secateurs and Some Like it Cold to create the costumes.

Crushed gem used to be tradeable in the Grand Exchange, however this was recently removed. An easy solution is to purchase an opal, jade, or red topaz from the Grand Exchange and use a hammer on it.

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.