gemsona

Noun

 * 1)  A  or regular Gem alter ego or self-insert character created by a fan.
 * 2) * 2015, "Believe in Steven and the Crystal Gems", Ka Mana'o (Leeward Community College), Summer 2015, page 7:
 * The fanbase has been prolific in the propagation of theories and speculation as well as the creation of original gem warrior characters or "gemsonas."