Well the feet attachments let her walk up walls
And don't knock getting taller. She's had trouble reaching certain pedestals and controls since she lost the limb enhancers.>>93245154
The theory isn't that Aquamarines and Peridots didn't exist in Era 1. It's that they might have been taller and had innate powers.
The Aquamarine we've seen doesn't seem to summon her wand the same way that gems summon their weapons, she just turns her hair tie into it.
Depending on an Aquamarine's function in Era 1 she may not need full limb enhancers like a Peridot