Amethyst

Amethyst has a somewhat stout build common to Quartz Gems and is shorter than most of the characters, formerly rivaling Steven's height, though only by a couple of inches. She is about half the height of a "standard" Quartz Gem soldier, such as Jasper, due to remaining in the ground for an extra 500 years, which also gives her a somewhat stocky appearance. Her skin is bright lilac, her eyes are dark indigo, and her thick, messy hair is pale lavender and goes down to her ankles, with a large bang that obscures her left eye. She also has plump lips, and a small, upturned nose. Her gemstone is located on her chest, and the bottom half of it was usually covered by her shirt.

First Form

In her first form, Amethyst formed in the Prime Kindergarten. After being struck by the Gem rejuvenator in Steven Universe: The Movie, Amethyst's body reverts to its base form: she takes on an almost mannequin-like appearance, with clear joint-lines at her elbows, wrists, knees, and ankles, and her feet are bare and featureless. She wears a dark purple leotard, and like her 1980s form, she has short hair and appears shorter in height.

18th Century Regeneration

In "Buddy's Book" and in a painting shown in "So Many Birthdays", Amethyst appeared with the same height and hairstyle as her current self. She wore a dark mauve jacket with white buttons and shoulder epaulets, lighter mauve leggings, small black boots, and a mauve and black hat with a small white star in the middle.

1980s-90s Regeneration

In "Story for Steven", "We Need to Talk", and "Greg the Babysitter", which were flashbacks to the 1980s-1990s, Amethyst had short hair, and she appeared a little smaller compared to her current and previous appearance. She wore a mauve tank top with a frilly-like bottom, a black shawl, baggy black pants, and white boots.

Debut

From "Gem Glow" to "Reformed", Amethyst wore a mauve, oversized, off-shoulder tank top (as confirmed in Guide to the Crystal Gems) with a black bra underneath.

Amethyst is really... out of control. She likes to eat, she likes to sleep. She doesn't have to, but she does it 'cause it's fun.

”
—Rebecca Sugar
Gem Glow (138,5)
Amethyst, summoning her weapon while eating.
Amethyst is fun-loving, full of laughter, and generally carefree to a fault. Although it isn't necessary for her, she enjoys eating and sleeping and is frequently seen doing so. She tends to indulge Steven more than the other Gems and partakes in human activities with him, though she shows concern for his well-being in times of more severe danger. Amethyst loves a good fight, something that manifests itself in her wrestling persona, the "Purple Puma," where she willingly masquerades as a hated wrestler purely for the fun of it and to relieve stress from Pearl and Garnet's constant orders. She often loves watching fights and will loudly vocalize or cheer when she sees a conflict in progress, egging the competitors on, including the feuds between Pearl and Greg, between Pearl and Peridot, and Steven and Garnet eagerly while eating popcorn.

Amethyst's First Form
Amethyst, after rushing her regeneration.
Loud and a lover of pranks, Amethyst is easily amused and very impulsive. She is bad-mannered, untidy, and a bit lazy; much to Pearl's detriment, but still means well. Her unwillingness to let others throw out the junk in her room marks her as somewhat of a hoarder. These tendencies surface in "Maximum Capacity", where she is unwilling to let Greg throw anything away in his storage unit. However, Amethyst is very observant and perceptive of other people's feelings: She tries to reassure Steven in "An Indirect Kiss" when he was worried about her as she fell apart, understood why Pearl kept fixing the Communication Hub in "Cry for Help", and that Garnet won't forgive Pearl unless the two directly talk it out in "Friend Ship".

Because of her origins in the Prime Kindergarten and its dark legacy, Amethyst harbors a tremendous amount of self-loathing.

Pre-Series
SU Movie 241
Before emerging, other recently-made Amethysts in the Prime Kindergarten waited for Amethyst (or as they called her, 8XM) to emerge, but were quickly shooed 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 Quartz 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, 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 Rose's son Steven.

Buddy's Book 135
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.

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.

"Laser Light Cannon"

Laser Light Cannon 046
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.

Amethyst, the other Crystal Gems, and Lion are all on the beach staring out into the water after Malachite disappeared. Amethyst begins celebrating their victory against the Homeworld Gems. When Pearl suggests building a moat due to Steven wanting to keep humans out, Amethyst says she wants to be the crocodile. Garnet doesn't let them. Steven says he's going to ignore Connie to keep her out of Gem business, but Amethyst notes that Connie's approaching the Beach House.

"Joy Ride"

The Crystal Gems work on cleaning up the debris from the Gem Warship. When Steven is in Jenny's Car with The Cool Kids, he vents about finding out that the Gems are alien rebels that are wanted by Homeworld Gems, and he feels like he can't talk to them about his problems because he thinks they blame him for Rose Quartz not being around.

Steven accidentally releases a flare while inside Peridot's Escape Pod. Believing Peridot to be inside, the Gems attack. They're angry when they find out that it was actually Steven inside, as they could have hurt him. However, the Cool Kids convince the Gems to lay off Steven, and Amethyst remarks they wouldn't have escaped the Gem Warship if it weren't for him. The Gems then take several selfies with the Cool Kids.

"Reformed"

Steven comes into the house asks Amethyst to take an online personality quiz based on his favorite show, Crying Breakfast Friends!, which she finds weird. Nonetheless she relents, but grows bored and wanders back to her room, where she finds Garnet. Garnet says she came to the room to find The Slinker, which crawled into the room. While sifting through her things, Amethyst is strangled by the monster and poofed, upsetting Steven. Garnet reminds him that it is only temporary and Amethyst will be back soon. Sure enough, Amethyst hastily reforms, but has a pair of legs where her arms should be, which she claims was intentional.

Amethyst overhears Garnet telling Steven that she should have put more time and thought into her new form