Amethyst, Princess of Gemworld

Amethyst: Princess of Gemworld is a superhero created by writers Dan Mishkin and Gary Cohn and artist Ernie Colón for the comic book series of the same name first published in 1983 by DC Comics. The series tells the story of a teenage girl named Amy Winston who discovers she is the orphaned princess of the magical land of Gemworld. She also learns that its evil ruler, Dark Opal, is out to destroy her and so she travels to Gemworld to overthrow him.

Powers and Abilities
Amethyst possesses a host of powers, including flight, spell-casting, energy manipulation, matter transmutation and can tap other sources of magical energy to amplify her own powers. She is powerful enough to engage in battle with the Spectre and survive.

Appearances in Idea Wiki

 * Amethyst is a main character in Teen Titans: When There's Trouble, voiced by Alyson Stoner.
 * Amethyst appears in Multiverse Unity: Pokémon Justice, voiced by Ashly Burch. She is depicted as a member of the Teen Titans.
 * Amethyst is a main character in Justice Crusaders, voiced by Ashly Burch. She is a member of the titular team under Superboy's leadership.