Elemental Gem
This gem contains a mote of elemental energy. When you use an action to break the gem, an elemental is summoned as if you had cast the _conjure elemental_ spell, and the gem's magic is lost. The type of gem determines the elemental summoned by the spell.
| Gem | Summoned Elemental |
|----------------|--------------------|
| Blue sapphire | Air elemental |
| Yellow diamond | Earth elemental |
| Red corundum | Fire elemental |
| Emerald | Water elemental |