Aventurine (or Aven) is my Gemsona! They use they/them pronouns. They are neither Crystal not Homeworld Gem and it's currently a bit ambiguous exactly where they came from.

Their weapon is a bow and enchanted arrows (similar to canon Opal). They are extremely capable of fusion and usually end up making good fusions with just about everyone due to them being so diplomatic and level headed.

They also have wind/air manipulation powers, allowing them to "fly" without wings.