Aquamarine

Aquamarine gems are characterized by their smallest range paired with highest single-target damage in the game, as a consequence of their average hit damage paired with innate split second cooldown. They deal cyan damage, attribute they share with Opal gems. Special combinations are notable in including the only 4-gem special combination, Tourmaline, with half of it being aquamarine.

Waves that are weak to Aquamarines are 2, 14 and 31.