This article contains information that is considered canon in the "Steven Universe" universe.
♫ I will fight for the world I was made in! The Earth is everything I've ever known! ♫
|—"We are the Crystal Gems"|
Amethyst is a main protagonist in Steven Universe.
As one of the Gems manufactured on Earth as a part of the Gem Homeworld's Kindergarten project and is the last known, Amethyst is one of the last surviving Gems on Earth to join the Crystal Gems. After the rebellion, Amethyst helped her friends protect the Earth over the next four millennia, and often aids in the shenanigans of Steven Universe, Rose Quartz's son.
Amethyst is shorter than most of the characters, rivaling Steven's height, (seeing that normal Quartz are large soldiers, she's half the height of other Quartz Gems, such as Jasper and Rose due to being in the ground for an extra 500 years) with an almost stout build. Amethyst's skin is a bright lilac, and her hair is a pale lavender color. She has plump lips, a small, upturned nose and a large bang which obscures her left eye. If you look closely, she has dark indigo eyes. Her shoes are white ankle boots. Her gem is located on her chest.
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. She wore black leggings with star-shaped cutouts on the knees. There was also a tear above the left star.
From "Reformed" to "Crack the Whip", the colors of Amethyst's tank top and leggings are reversed. Instead of cut-outs on her leggings, she now has two black stars. On the lower part of her tank top, there are now two small slits on either side. She fixes her shoulder strap, keeping it on her shoulder rather than off (a feature Pearl was happy to see changed).
From "Crack the Whip" to "Together Alone", Amethyst's color palette remains the same but has been swapped once more: her tank top became off-white with a jagged hem, got black leggings (similar to her debut) with dark mauve stars on them. Her ankle boots are the same dark mauve hue.
As of "Change Your Mind", Amethyst now wears a black tank top that it is torn open at the chest to reveal her gemstone, dark mauve shorts with black stars on each legs, and her boots become white again.
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.
Amethyst is fun loving and care-free. Loud and full of laughter, she is easily amused and very impulsive. Amethyst is often used as comic-relief. She is bad-mannered, rude, and rather untidy, giving her a somewhat uncivilized demeanor. Her overprotectiveness of her junk 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.
Amethyst tends to indulge Steven more than the other Gems and partakes in human activities with him, generally being carefree to a fault while showing concern for his well-being in times of more severe danger. Although she doesn't have to, Amethyst enjoys eating and sleeping, and is frequently seen doing so.
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 loves watching fights, too, and often loudly vocalizes and cheers when she sees conflict in progress, egging the competitors on, including the feuds between Pearl and Greg and between Pearl and Peridot.
Because of her origins in Kindergarten and its dark legacy, Amethyst harbors a tremendous amount of self-hatred, which is also fueled by her perception that she is inadequate when compared to Garnet or Pearl. This leaves her feeling out of place among the Crystal Gems, thinking that she does not belong with Gems of their caliber when she was created by the very thing they sought to destroy. She thought that when Steven learned of her past, he would think less of her. She worries about Steven's and Garnet's approval in "Reformed", and Amethyst demonstrates that she has difficulty thinking for herself, regenerating multiple times in the episode with new forms that were all rushed or based on what she thinks Garnet and Steven will approve of.
Amethyst possesses standard Gem abilities and traits.
Out of the Crystal Gems, Amethyst is the least likely to rely on her weapon in combat, instead relying on her martial art skills as a method of dealing with more minor threats. In "Laser Light Cannon", she readily volunteered to get thrown at the Red Eye by Garnet in order to punch or body slam into it as an attempt to destroy it, persevering long after it was already proved to be a futile act. Amethyst is by far the most frequent user of shape-shifting, which she uses to enhance her unarmed fighting. She may shape-shift into her wrestling alter-ego, the "Purple Puma", or take on more bizarre forms depending on the task at hand. She also is able to regenerate very quickly and with great variation, but this has been shown to backfire.
Amethyst is very observant of other people's feelings. She tries to reassure Steven in "An Indirect Kiss" when he was worried for her as she fell apart, knows why Pearl kept fixing the Communication Hub in "Cry for Help", and that Garnet will not forgive Pearl unless the two directly talk it out in "Friend Ship".
- When fused with Pearl, they form Opal.
- With Ruby and Sapphire (or Garnet), they form Sugilite.
- With Ruby and Sapphire (or Garnet) and Pearl, they form Alexandrite.
- Amethyst could also form Alexandrite by fusing with Sardonyx.
- When fused with Ruby and Sapphire (or Garnet), Pearl, and Steven, they form the hybrid fusion Obsidian.
- Whip Proficiency: Amethyst is very skilled with her whip, and mixes very well with her immense strength. She uses her whip to lash at opponents and cause damage that is strong enough to easily split a dumpster in half. Her lashes are sometimes so precise that they cut through objects in a clean line. Occasionally, she uses her whip to grab onto objects or lift them and throw them at the enemy. Her fighting-style can sometimes be considered reckless and foolhardy; in "Monster Buddies", she used her whip to pull the Centipeetle Mother towards her, knocking her and the other Crystal Gems down. Amethyst can throw her whip to entangle or bind her target from afar.
- Whiplash: Amethyst can send waves of purple energy along her whip or whips in order to create an immense explosion.
- Shape-shifting: While all Gems are capable of shapeshifting, Amethyst is particularly skilled at it, specializing in transformations. Her proficiency is high enough where she was able transform herself into a fully-functional helicopter to transport the other Crystal Gems in "Message Received".
- Wrestling: Amethyst is a skilled wrestler, easily defeating all her human challengers in the Beach City Underground Wrestling league.
- Enhanced Digestion: Amethyst has the ability to eat glass, plastic, paper, etc. and is able to digest it without getting sick or disgusted. However, she can still get food poisoning, but won't die from it.
- Hair-Blade: Amethyst is able to use her hair to slash at an enemy with such potency it severs the claw of the Crab Gem Monster.
- Spin Dash: Amethyst can rapidly roll in a ball-like shape to attack enemies.
- Homing Attack: Amethyst can hone in on nearby enemies while spin dashing.
And you’re fun to have around, even if your gem is useless. I... mean, you’re one of us, Steven. We're not the Crystal Gems without you!
Amethyst spends a great deal of time hanging out with Steven. Both are very carefree, and as a result, get along very well. Despite their sibling-esque nature, Amethyst teased Steven in "An Indirect Kiss" for caring about her, to which he replied "yes" with tears on his face since she was in danger of falling off a cliff. Steven believes that Amethyst may partially blame him for Rose Quartz's "death".
In "Reformed", Amethyst shows that she wants to impress Steven, and is afraid of him not liking her. This is seen in multiple ways. When Steven keeps asking her questions for a personality test on his phone, she avoided and lied about her answers. She even asked once for a correct answer, and Steven replied there isn't, since everyone can answer differently. Also, Amethyst rushed one of her regenerations because she didn't want to keep Steven waiting for her.
However, since the events of "Reformed", Amethyst seems to be more open to discussing her feelings with Steven, singing Tower of Mistakes in earshot of him and openly expressing a desire (to Steven) for Garnet to see her as "cool again" in "Cry for Help".
Yeah, yeah. And don't forget: Reckless, vulgar, loudmouth. And that's just what makes me so awesome! Right, Garnet?!
While Amethyst dislikes being told what to do and often does what she wants to do, she respects Garnet's leadership abilities and judgment. She, like the rest of the Crystal Gems, is aware that Garnet is a fusion and after Steven revealed he had discovered this, she shouts out "You met Ruby and Sapphire!?". In "Cry for Help", Amethyst admits that she is jealous of Garnet's power and admits it's easy to get carried away when fused with her, which causes her to quickly catch onto Pearl's scheme.
Ugh, you're no fun anymore. This is why we never form Opal.
The two share a strained relationship, due to their contrasting personalities; Pearl being clean and tidy, while Amethyst is loud and isn't afraid to get her hands dirty. Amethyst frequently teases Pearl, who often scolds her in turn. Regardless, they value each other as both teammates and friends. Amethyst had thought that Pearl perceived her as a "mistake", due to her origins in the Kindergarten. She has since dismissed the notion when Pearl assured her, "You were the one good thing that came out of this mess. I always thought you were proud of that".
During the episode "Cry for Help", Pearl and Garnet fused to form Sardonyx, as opposed to Amethyst and Garnet fusing to form Sugilite, resulting in Amethyst being jealous towards Pearl and Amethyst's lament. However, when Steven and Amethyst learned that Pearl was fixing the Communication Hub just to create Sardonyx, Amethyst was not angry or upset once she discovered Pearl's motivation for doing so. When the truth was revealed to Garnet, Amethyst defended Pearl as she knew why she did it. In "Keystone Motel", when Steven, Garnet and Greg return from their trip, Amethyst can be briefly seen trying to console a very upset Pearl, whom Garnet is ignoring due to Pearl's irresponsible actions in "Cry for Help".
Following the events of "Back to the Barn", Amethyst is shown to have high respect for Pearl after her tremendous display in the Robolympics. Amethyst is shown to have been quite astounded at Pearl's display of physical feat and strength, showing a much more compassionate side of the relationship between the two.
According to "A Guide to the Crystal Gems", Opal is a balanced fusion, showing how Amethyst's and Pearl's personalities balance out into a fusion so peaceful that it is sometimes uncomplicated for them to forget. However, this balance is laborious to hold. If Pearl and Amethyst begin to fall into their usual dissonance or come across an issue otherwise, they can separate almost immediately.
It appears that their relationship has greatly improved as of "Log Date 7 15 2", as they were able to form Opal with ease in order to lift the drill head.
Yeah. You can't control him, and he shouldn't be taking advice from me, and we don't have Rose to tell us what to do!
Well, what about me, huh? I had someone who was always there for me until she started hanging out with YOU!
In "Maximum Capacity", it is revealed that Amethyst and Greg were good friends. After Rose gave up her physical form to give birth to Steven, the two would marathon the "Li'l Butler" TV show together for days at a time. This would stop when she blamed Greg for Rose's "death", messing with him until she took it too far in an incident which involved shape-shifting. During the episode she torments Greg again by shapeshifting into Rose. By the end of the episode, Amethyst made efforts to mend their friendship by replacing the broken frame of a photo of Greg with Rose and giving it to Greg.
Hm... 'smash' is the word that one would use to describe what.. someone else might do.
|—Sardonyx, "Cry for Help"|
Wow! You two look great together! How does it feel Steven? Connie?... Stevonnie?
In "Alone Together", Amethyst is happy to meet Stevonnie (after chuckling at Garnet's blissful reaction to their appearance). She ultimately names them after tripping over Connie and Steven's individual names when asking about how they feel in their newly fused form.
Aw, man. We used to get into all sorts of trouble.
|—Vidalia, "Onion Friend"|
Amethyst and Vidalia were close friends in older days, both being mischievous troublemakers after Amethyst was introduced to Greg. Vidalia reminisces about how they began their friendship when Amethyst started hanging out with her. They had a lot of fun together, but lost contact for 17 years when both moved forward with their lives.
In "Onion Friend", they reunite and talk like the old days, and it is revealed that Vidalia takes a lot of inspiration from Amethyst, not just through her paintings and drawings, but also in her everyday life, considering how much she admires her laid-back personality. However, Amethyst felt the opposite, with Vidalia being her inspiration for the same reasons.
That's so sweet! I-I love you too.
Like all the Crystal Gems, Amethyst has no problem treating Lion like part of the team and like a friend. Amethyst has liked Lion since the first time they met, unlike Garnet and Pearl.
Like the rest of the Crystal Gems, Amethyst initially treated Peridot like a threat. Since Peridot's recent regeneration their relationship was rather neutral. Their relationship is explored further in "Too Far", which shows Amethyst finds her neurotic mannerisms "funny". While raiding the Kindergarten for spare parts for the Cluster drill, Peridot and Amethyst start sharing jabs at the other Gems, which Amethyst initially found humorous. Once Peridot got to the subject of Amethyst, however, Amethyst realized how offensive Peridot's "jokes" really were. Thoroughly irate, Amethyst, along with Peridot and Steven, leave the Kindergarten with an injector drill head. When Peridot tries to approach Amethyst later on, Amethyst gives her the cold shoulder. Upon being enlightened that her attempts at humor were incredibly rude, Peridot apologizes to Amethyst in a recorded message, which also stated that though Peridot finds Earth very strange, she actually desires to learn about why the Gems are who they are. Amethyst thanks Peridot for apologizing, though Amethyst nonchalantly says she still views Peridot as a nerd. In "Message Received", Peridot seemingly betrays the Crystal Gems which greatly upsets Amethyst. Upon seeing Peridot's true intents and subsequent defiance against Yellow Diamond, Amethyst officially accepts Peridot as a Crystal Gem. Peridot finds great pleasure and amusement from Amethyst's shapeshifting, connecting the two even more. Out of all the Crystal Gems, aside from Steven, Peridot appears to be closest to Amethyst.
- Her "Spin Ball" attack, which she shares with Jasper, may be a reference to the popular fictional character, Sonic the Hedgehog, whose main form of attack is rolling into a ball and dashing into enemies.
- It is possible that she has long hair due to Greg's influence on her, as in "Story for Steven", Amethyst takes an interest in Greg's hair and climbs through it.
- However, she has had long hair in the past, as evidenced by the painting in her room from "So Many Birthdays".
- Amethyst's design changed the least from the "Pilot" to the series, besides Steven. These changes include:
- Removal of silver ring around gemstone. (As seen in "Reformed", her gem still has a ring around it, however, it is not visible unless she's regenerating, as the ring is usually hidden under her skin.)
- Her top changed from long-sleeved to strap-like.
- Circle shaped holes in her leggings changed to star-shaped.
- Removal of barrette.
- Boots changed from fold-over to regular.
- Removal of fanny pack, though it makes an appearance in "Beach Party".
- Skin tone is lightened.
- Hair style is cleaner.
- Amethyst's original outfit did not feature the classic Crystal Gem insignia seen on Pearl and Garnet, but rather has cutouts of stars on her knees.
- This is likely because she was not born/created as a Crystal Gem, but rather found at Kindergarten by the others and adopted into their fold.
- As a result, she might have altered her default outfit to represent the Crystal Gems.
- Of all the Gems seen thus far, Amethyst shape-shifts the most.
- At New York Comic-Con, Rebecca Sugar revealed that Amethyst's designs and color palette are based on Adventure Time's Lumpy Space Princess, due to her earlier work on that show.
- Amethyst knows how to play the drums, as revealed in "Steven and the Stevens".
- Amethyst can't shape-shift when she is under a lot of pressure, as revealed in "Secret Team". 
- It is shown that when Amethyst blushes, she blushes dark purple.
- Amethyst has the ability to speak Spanish. 
- None of Amethyst's fusions are fully stable.
- Opal unfuses if any sort of disagreement occurs between Pearl and Amethyst.
- Sugilite's personality combines the worst of her and Garnet's personalities, being very dangerous and reckless.
- Alexandrite is the most unstable, due to the several conflicts between all of her fusees.
- All of her fusions have extra limbs, her tousled hair, the star-shaped cutouts on her legs and her voluminous lips.
- Rebecca Sugar has revealed in an interview that Amethyst's room is the closest to her actual lifestyle.
- According to Rebecca Sugar, Amethyst's dancing/fighting style is based on dance hall and club dancing. 
- Amethyst is at least 5,500 years old, as that was when Earth's Kindergarten was shut down. 
- She did not take part in the battle in the Gem Battlefield, though she would've been a thousand years old by then. 
- Amethyst lived some time in Kindergarten after emerging, spending her time playing with different rocks she had adopted as her "friends". In "Too Far", Peridot says that Amethyst must have emerged when the Kindergarten no longer functioned, suggesting that she was most likely alone for the remainder of her time there. 
- In "Story for Steven" and "We Need to Talk", Amethyst acts in many ways like an animal or a feral child. She mostly walks on all fours, is very invasive and inquisitive, rips through a bag of "Pop-Pop" like a dog would, and even goes to fetch a stick when Garnet throws it.
- Amethyst and Jasper have similarities in body and combat style. These similarities include:
- Jasper and Amethyst both have wild and unkempt hair.
- Both share voluminous lips
- Jasper can also rapidly roll in a ball-like shape to attack enemies. While Amethyst was shown to have this ability as well, it seems that Jasper's version is more powerful.
- This could be a hint to actual mineralogy, as Jasper is a non-crystalline quartz, while Amethyst is a crystalline quartz.
- Of the four Crystal Gems, Amethyst usually ends up getting hurt and having to retreat to her gemstone to regenerate the most.
- Amethyst is the only Gem to have to retreat into her gemstone because of a corrupted Gem. Pearl was stabbed by Holo-Pearl, and Garnet was hit by the Gem Destabilizer from Jasper.
- Amethyst's reason for protecting Earth is because it is her birthplace and the only home she has been able to have.
- Her lines from the extended opening theme are, "I will fight for the world I was made in! The Earth is everything I've ever known!"
- Amethyst does not care what food she eats or where she eats it from, as in "Reformed", where she is wanting to add engine oil to her meal.
- Amethyst is loosely based on Rebecca Sugar's friend, Valerie Ang, from college.
- Amethyst shape-shifts herself a digestive system in order to eat. 
- In "Too Far", Peridot reveals that Amethyst, as a quartz, lacks typical features of her gem-type and is half the height she should be due to her developing for too long.
- Amethyst is about 500 years younger than all the other Gems developed in the Kindergarten, as estimated by Peridot in "Too Far".
- Amethyst is the birthstone for those who are born in February or for the zodiacal sign of Pisces and Aquarius.
- Amethyst is the national gemstone of Uruguay.
- The amethyst is assigned to the planet Neptune.
- Amethyst belongs to the macrocrystalline branch of quartz and owes its violet/purple color to iron and aluminum impurities.
- Like other varieties of macrocrystalline quartz, amethyst has transparent to translucent clarity and a vitreous luster.
- Amethyst stones are often associated with the Greek/Roman god Dionysus/Bacchus, god of wine, intoxication, madness, and agriculture.
- This could be the reason behind her impulsive and self-indulgent nature.
- Since amethyst was considered an antidote against drunkenness, many wine goblets were carved from amethyst stone. Still to this day, violet-purple amethyst is a symbol of sobriety.
- Some famous amethysts include the Tiffany Amethyst, the Delhi "Sapphire", and the Morris Amethyst Brooch.
- Amethyst owes its color to iron and aluminum impurities. The colors range from purple and violet to pale red-violet.
- Without such coloring agents, amethyst would simply be transparent, ordinary colorless quartz.
- So-called green amethyst is produced by heat treatment, but since amethyst is defined by its purple color, green amethyst is not considered to be a true amethyst.
|Amethyst's gemstone is located on her chest, featuring a hexagonal facet. As seen in "Reformed", the front and back are symmetrical, and it has a silver ring around it, which is usually hidden inside her body unless she's regenerating. It is a tetradecahedron, specifically a truncated hexagonal dipyramid. It's overall shape is circular.|