She is a small gem that works directly under Blue Diamond to retrieve human "variations" for Pink Diamond's Zoo. Her gemstone is located below her left eye.
Aquamarine is very bossy as she orders Topaz to do most of the mission-work. She is also shown to be aggressively playful as she literally swung Steven into a tree with her wand in "Are You My Dad".
- Wand: Aquamarine can use her wand and paralyze/freeze anyone and anything she encounters in order for the enemy to not to any damage.