Summon forth your Aquamarine Carbuncle, an arcane entity given form by the mysteries of aquamarine geometry.
Those adventurers who have longed to hop on their Carbuncles' backs can give thanks to the arcanist Ulan, whose research into Diamond Carbuncle provided the necessary cues to create an arcane entity of ridable proportions. As its form is maintained by a large aquamarine, it can be summoned even by those unversed in the ways of arcanima.
What have we here? An admirer of the arcane? A connoisseur of Carbuncles? - Ulan