Peridot (specifically Peridot Facet-2F5L Cut-5XG) is a member of the Crystal Gems who made her debut in "Warp Tour". She was originally a Homeworld Gem technician and a certified Kindergartner. After being stranded on Earth following the events of "Jail Break", she acted as a recurring antagonist until becoming more of an antihero and pseudo-antagonist by establishing a truce with the Crystal Gems in "When It Rains" to help them save the Earth from the Cluster. She officially became a member of the Crystal Gems in "Message Received" after she defied and insulted her Homeworld superior, Yellow Diamond. Peridot is currently living at the Barn with Lapis Lazuli.