Steven Universe: Guidance Season 6, Ep 2
"Professor" Amethyst has settled into her role as teacher at the School, and has even gotten gems jobs around Beach City! But Steven thinks she's just telling them to perform the roles they were made for.
Steven Universe: Back to the Moon Season 3, Ep 24
Amethyst disguises herself as Jasper to fool the Homeworld Rubies.
Steven Universe: Earthlings Season 3, Ep 23
Steven, Amethyst, and Peridot confront Jasper in the Beta Kindergarten.