Amethyst (specifically Amethyst Facet-5 Cut-8XM) is one of the two tritagonists (alongside Pearl) of the cartoon series, Steven Universe, one of the three tritagonists (alongside Garnet and Pearl) of Steven Universe: The Movie, and one of the main characters of Steven Universe Future. She is one of the Crystal Gems and Steven's best friend (besides Connie). As of "Together Alone", she is poofed by Yellow Diamond as Opal along with Garnet, but she is eventually regenerated in the Season 5 half-hour finale special, "Change of Mind" along with Garnet and Pearl.
She is voiced by Michaela Dietz, who played Riff in Barney and voices Dolly in 101 Dalmatian Street. In the Japanese dub from the series, she is voiced by Toko Aoyama.