- Main article: Amethyst
Amethyst is a "defective" Quartz-type Gem created on Earth in the Prime Kindergarten with the natural abilities to be a soldier. She emerged from the ground five-hundred years later than intended, causing her form to be smaller and less powerful than the average Quartz. For an indeterminate amount of time, Amethyst roamed the Prime Kindergarten by herself until being found by the Crystal Gems and joining them.
Before emerging, other recently-made Amethysts in the Prime Kindergarten waited for Amethyst (or as they called her, 8XM) to emerge, but were quickly shoed away after being told she could catch up with them later. Amethyst emerged approximately five hundred years later, by which time all the Homeworld Gems had fled Earth. Before being found by Rose and the others, Amethyst's life consisted of playing with rocks in the Prime Kindergarten. She lived with the other Gems for thousands of years after being found by them, and appears to be knowledgeable on some, but not all, of Gem history most likely taught to her by the others. During Amethyst's time with the Crystal Gems, she learned how to fuse, most likely to have formed Opal, Sugilite, and possibly Alexandrite. Amethyst grew a close relationship with Rose Quartz, describing her to be the person who was always there for her. Over the years, Amethyst poofed a lot due to her clumsiness, as she describes thousands of years later to her Rose's son Steven.
Although Amethyst lives at the Crystal Temple, she still visits the Prime Kindergarten, and met Buddy Buddwick on one of her trips back. Buddy shows Amethyst the map that Pearl drew up for him, and tells her that he's an explorer. Amethyst tells him that he's not really discovering anything, but instead walking in someone else's footsteps. When Buddy is upset by this, Amethyst tells him that he should try finding the sand castle in the Desert, since it's never in the same place twice. Buddy is then on his way, and Amethyst tells him to come back any time, but not too much. Also around this time, Amethyst and the other Gems helped sailors fend off their boat from shark infested water, as seen in an old Gem painting. Amethyst, specifically, is pulling one of the sailors out of the water.
Hundreds of years later, Amethyst met Greg Universe when he visited the Temple in search of Rose. Shape-shifted as an owl, Amethyst flies to Pearl and tells her that that a long-haired human was talking to her about Rose. Amethyst is excited by Greg's appearance, telling him that she likes his long hair. Amethyst gives him the nickname music man after finding out he's a musician.
Another day, Greg and Rose are singing a duet together while the Gems play background instruments. Amethyst played the drums, which Greg promised her Pop-Pop if she did. When Greg is later trying to learn a fusion dance, Amethyst is shown to be experienced. Amethyst is happy to see Rose and Greg together. However, the more time Rose and Greg spent together, the more Amethyst began to change her feelings. Amethyst became hurt that Rose started seeing Greg more than her, and blamed Greg for this. Amethyst never lashed out at Greg though, and the two were close friends. They were known to watch the TV show Li'l Butler for days without leaving the house.
When Rose and Greg have Steven, Amethyst has trouble adjusting to the fact that Rose is gone. Garnet has to continuously explain to her that Steven is a human baby and not Rose. During Steven's first winter, Amethyst and the other Gems visit Greg to give presents for Steven. Amethyst's gift are adult diapers, which Greg promptly points out are too big for him. Amethyst tells Steven to shape-shift bigger so that they fit. When Steven gets excited, his Gem begins to glow, leading Amethyst to believe that Rose is trying to shape-shift back into her old self. The Gems kidnap Steven to try and figure out why his Gem was glowing when Greg is unable to. Amethyst tries to show "Rose" how to shape-shift, not understanding why Rose would be shape-shifted for months, longer than Amethyst was shape-shifted into a toilet. Once the Gems realize that Steven is not Rose, Amethyst accepts the fact that from now on, everything has to be about him.
When Steven gets home, he finds Amethyst, Pearl, and Garnet locked in battle with Centipeetles that have invaded Steven's room. They destroy most of them, but Amethyst realizes that the Centipeetles left behind no Gems after poofing them. Afterwards, the Gems explain to Steven that they purchased some Cookie Cats (which recently went out of business) from a nearby factory since they knew that they were his favorite. However, Amethyst claims to have stolen them, leading Pearl to go back and pay for them. Steven takes a bite out of a Cookie Cat, and his Gem starts to glow. Amethyst tells him to try to summon his weapon, but Steven does not know how. He asks to be taught how to summon a weapon, and visits Amethyst behind the Big Donut. Amethyst explains that whenever she needs her weapon, it just comes to her naturally and demonstrates this by pulling out her whip and slicing a dumpster in half. Amethyst is later present when Steven tries recreating the events that occurred when his Gem began glowing when he still can't figure out how to summon his weapon. Amethyst and the others reassure him when his plan fails, but are taken back when Steven eventually does summon his shield. Steven loses control and his shield starts bouncing around the house and smashes into the TV, which Amethyst finds hilarious.
The Centipeetle Mother appears outside. Amethyst, Pearl, and Garnet go outside, but tell Steven to stay inside. They engage in battle, but are eventually pinned down by the monster. Amethyst remarks how they could use Steven's shield, and her as well as the other Crystal Gems cheer in amazement when Steven finds a different way of subduing the Centipeetle Monster. Amethyst concludes that Steven's powers don't come from eating ice cream, which the latter theorized.
Steven and Amethyst are at Beach Citywalk Fries ordering fry bits when she notices a Red Eye hurtling towards Earth. They join Garnet and Pearl at the beach to come up with a plan to stop the giant eyeball from crashing into Beach City. Garnet tries throwing Amethyst at it, but to no avail. The only way the Crystal Gems can think of to destroy it is to use Rose's Laser Light Cannon, the issue being that none of them know where it is. Steven suggests getting his dad to help, even though the other Gems tell Steven that his dad probably would not have the light cannon. While he is gone, Garnet continues to launch Amethyst at the Red Eye, but she merely bounces off it and plops into the ocean below.
As Steven and Greg arrive at the beach with the Laser Light Cannon, they come across the Gems still launching Amethyst at the Red Eye, which is getting dangerously close to impact with the Earth's surface. The group tries to activate the cannon quickly as the Red Eye begins emitting a gravitational pull and begins destroying everything in its range. They try various methods but nothing works. When Steven eventually figures out how to activate the cannon, it glows, opens up, and the barrel falls on the sand. The Gems help Steven lift and aim it at the Red Eye. When the light cannon fully charges, it blasts out a strong beam of light and destroys the Red Eye. Amethyst congratulates Steven by telling him he saved "most of Beach City".
Amethyst tries to get a large egg into the fridge while Pearl is discouraging her. Later, Amethyst wants to bring Steven along on a mission under the pretext of education. After Steven succeeds in using sweaters as a rope swing, Amethyst pulls out her whip and brings her and the rest of the Gems over. Later, Steven apologies that the spire sunk, but Pearl and Amethyst cheer him up saying that 50% of his ideas worked. Later, Amethyst and Pearl start chanting "cheeseburger backpack" over and over again.
A shape shifted Amethyst as a policeman called the "dumb police" starts yelling that Steven is dumb. Steven tells Amethyst that he knew of her disguise the entire time. He puts on a new shirt which Amethyst squirts with her water gun again. Pearl comes out of the Temple using Amethyst's door and is mad at her for taking one of her swords. Amethyst claims she did not, but rushes back in after Pearl mentions that she cleaned her room. Later, Steven lands in Amethyst's room with the breakfast still intact. Amethyst notices him and complains that Pearl always accuses her of taking her things, but in reality, they always fall down the waterfall into Amethyst's room. She then proceeds to mess up her room again to her standards. Steven says that it still looks pretty messy, which pleases her. Then she notices Steven's breakfast and she insists on eating it. Steven starts running, telling her that it is for everyone, but she still chases him through the Temple. Steven jumps on the pole to the Crystal Heart and slides down it. Amethyst and Pearl catch up with him. Later, the breakfast squashes Garnet and Amethyst with a waffle. Later, Garnet, Amethyst, and Pearl help Steven make another Together Breakfast which is bigger and better so they can all share it.
After Steven and Greg finish cleaning Mayor Dewey's Van and play fight with the water hoses, a cat holding a hose in its mouth starts spraying Steven and Greg. The cat reveals itself to be Amethyst. Steven asks Amethyst if he could shapeshift like her as they walk to the Crystal Temple. When they arrive Amethyst shows off her shapeshifting powers, and Pearl tells Amethyst that just because she can shapeshift doesn't mean she should. Steven asks Pearl if she could shapeshift. She answers that all Gems can, and Amethyst interrupts by shapeshifting into Pearl and mocking her. Pearl leaves and Steven asks Amethyst how to shapeshift. Amethyst explains her methods of shapeshifting, and Steven attempts to turn into a cat. He manages to transform one of his fingers into a meowing cat head. Amethyst then tells Steven to show it to his dad, and Steven runs around showing off his cat finger. Later in the episode, Steven returns to the Crystal Temple and asks Amethyst for help returning his fingers to normal, as the Gems are leaving to fight a "living island". Pearl insists that they stay to help Steven, but Garnet says they can't because the mission is urgent. Pearl blames Amethyst for this; Amethyst replies, "that's fair." Pearl tells Steven to stay calm as they leave. The Crystal Gems return the next day, and Pearl rushes to ask if Steven is okay. She then begins to lecture Steven about him listening to her instead of Amethyst, to which Amethyst agrees.
|Gems||Rose Quartz • Pearl • Amethyst • Garnet • Peridot • Lapis Lazuli • Jasper|
|Humans||Greg Universe • Connie Maheswaran • Lars Barriga • Sadie Miller|