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Alexandrite (アレキサンドライト, Arekisandoraito) is one of the Gems who worked at the School as an expert on The Lunarians and is among the gems that accompanied Phosphophyllite to the moon. They do not research The Lunarians because they are interested in them, instead, they conduct the research as an attempt to overcome their condition. Alexandrite conducts this research in order to retain the "fresh feeling of hatred" that they have for The Lunarians as a result of Chrysoberyl being taken from them. Kongōforbade Alexandrite from seeing the Lunarians as it causes them to go into a battle frenzy. They are one of the older gems, however, their age is unknown.

Appearance[]

Alexandrite, also called Alex, has a turquoise colour scheme and wears the winter or summer uniforms depending on the season. They wear the standard black shoes and sometimes black gloves, but never wear any socks. Their hair is straight and thigh-length with side bangs pushed to the left and with two, long strands of hair infront of their ears and a small ahoge poking from the top of their hair.

When transformed into their berserker mode, their hair becomes more wild shifting to turquoise, to indigo then finally to deep red and their eyes dilate.

Manga Spoiler

When they go to the moon, Alexandrite appears in their normal uniform, with the exception of white gloves serving as a blindfold in order to not trigger their condition. They eventually gain a Moon outfit and special glasses to block their vision.

When they start working as a chef, in addition to their blindfold, Alexandrite ties their hair in a ponytail and wears a chef's simple jacket.

During the Invasion Arc's invasion, Alexandrite wore a vertical striped leotard with stripe-less bishop sleeves that had a long, see-through skirt over the outfit with a large visor that covered their eyes and nose. Alexandrite also had a big collar around their neck with a long chain at the back that had a large ball which was held by Benitoite.

After becoming a lunarian, Alexandrite goes back to using cooking attire, has their hair tied in a ponytail, they are seen wearing a shirt with medium puffy sleeves and a kitchen apron.

As of Chapter 95 Alexandrite has become a Lunarian and therefore has lost their unique turquoise color, and their unique red color transformation.

End of spoiler.

Personality[]

Alex is studious, especially in terms of information and literature relating to The Lunarians. They will pester the other Gems for details regarding any fights or encounters with the Lunarians, especially if there is a new type of Lunarian. When referred to with honorifics, they hate being called Alex-san, preferring the cuter Alex-chan. This is changed to Alexi or Lexi in the official English translation.

It's said that this attitude of Alex is different from the one they had before Chrysoberyl was taken.

When Red Alex, they simply become obsessed with cutting down anything they consider an enemy, passing out once the job is finished. In this state, they don't speak, only screaming out bellowing war cries.

Manga Spoiler

Later it is revealed that they enjoy learning about other things they become interested in, pursuing cooking once they no longer hold any animosity towards Lunarians and by extension their attachment to Chrysoberyl. Their condition does not go away, however, but targets (earth) gems instead of Lunarians.

End of spoiler.

Abilities[]

Alexandrite has a berserker mode that has a chance of activating when gazing at Lunarians. Alex is forbidden from looking at or engaging with the Lunarians because of this. In this state, their hair transitions from green to indigo to red and they go into a battle frenzy, eventually collapsing before returning to their default personality. However, Alex occasionally just passes out upon viewing Lunarians. Alex themself compares this phenomenon to a roulette wheel.

Manga Spoiler

It is later they learn that this is caused by the light Lunarians emit entering their eyes and reflecting inside their body, causing them to transform when it gets deep inside their chest. Whether they turn red or pass out depends on the angle it enters their body, passing out when it doesn't quite reach. The light can be blocked with special glasses they begin wearing on the Moon.

End of spoiler.

Character Profiles[]

Vol 3:

  • Lunarian research maniac. Prefers to be called Alexi.

Vol 4:

  • Not just a Lunarian research enthusiast. There is a secret behind the mania.

Vol 5:

  • Has a surprising reason for becoming a Lunarian research enthusiast.
Manga Spoiler

Vol 7:

  • Double Personality. Enjoys Lunarian research to the extent of forcing the hobby into the "job" category.

Vol 8:

  • Has a split personality. When partnered with Chrysoberyl they used to have a cute and gentle personality but it has been rather spoiled.

Vol. 9:

  • Split personality. Misses Chrysoberyl.

Vol. 10:

  • Now we'll learn the cause of their two personalities.

Vol. 11:

  • Will show you what an 8.5 can really do.
End of spoiler.

Story[]

  • Blue Alexandrite collects information from the Gems that fight The Lunarians.
  • When Phosphophyllite was eaten by a slug and integrated into the shell, Alex joined the other Gems in pulling the shell out from the pond and collecting Phosphophyllite's fragments.
  • Alex joined the other Gems in searching for Phos when they were lost in the sea. They question them about Lunarians in the anime.
  • After the Amethyst Twins are recovered from the sapphire Lunarian trap, they are officially introduced questioning the Amethyst Twins.
  • They joined the winter hibernation like the other Gems.
  • When Shiro, a large Moon Person creature, appeared and started chasing Diamond, they both ran past Alex who was about to take a nap. Bort and Phos then ran past Alex in the other direction but Alex stopped them. When a part of Shiro attacked Phos, they urged Alex to pick up their sword and fight back. Alex tried to refuse since they were forbidden from doing so, but finally relented given the urgency of the situation. Upon picking up the sword and looking at Shiro, Alex's berserk mode manifested and they quickly dispatched Shiro, much to the surprise of Phos. Alex also dispatched the other parts of Shiro that were fighting Bort before finally collapsing.
  • When Phos wanted to learn more about The Lunarians, Alex taught the younger Gem about the different types of Lunarians. Phos asked Alex if they liked The Lunarians, to which they said no, explaining that their investigation of The Lunarians is done in order to fix their own condition. They tell Phos that before the younger Gem was born, The Lunarians took Alex's partner, Chrysoberyl, away. Alex keeps the Lunarians in mind every day in order to remember the hatred they have for them.

Manga Spoiler

  • They lost an original drawing of the Lunarians while recovering material from the library, and Phos helped them find it again. Along with Euclase and Jade, they noticed Phos' similarities with Lapis Lazuli.
  • Alex is convinced to go to the Moon, but must have a blindfold on their eyes so as to not be changed to Red Alex.
  • Upon learning that all abducted Gems have been ground to powder, they fall to their knees, fracturing and breaking out of shock and grief.
  • Alex remains on the Moon, learning that it is possible to remove the condition and stay permanently red. Benitoite tells them they can't go through with it, saying it would be too dangerous, but Alex says that if they need someone to control them, it should be Benito. Ultimately, Alexandrite does not go through with the operation, but Benito is made their unwilling caretaker.
  • They bond with Barbata over food, eventually working in a restaurant for the Lunarians (with Benito), which is popular enough for the Lunarians to want to eat there for their "final meal".
  • Alexandrite agrees to go with Phos back to Earth to destroy the Gems, claiming that they no longer harbor resentment towards Lunarians nor care much about Chrysoberyl. They drag Benitoite along.
  • Alex declares they will go down first to fight upon their arrival to Earth, before promptly removing their eyewear. They happen to look back and immediately pass out as a result.
  • They rise up after transforming, shattering gems left and right while Benito ineffectually holds onto the leash. They shatter nearly every gem in the school but are accidentally beheaded by Benito, who is shattered by Alex's detached head colliding with theirs.
  • Alexandrite is restored like all the other Gems and is changed into a Lunarian.

End of spoiler.

Relationships[]

Phosphophyllite[]

After Phos gained their golden arms and became capable of combat, Alexandrite praised the Gem's keen observation and commented that they've changed, thinking that the prior Phos was always bragging and exaggerating everything.
Manga Spoiler
Alex also chooses to go to the Moon with Phos and offers to help with returning to Earth. They offer matter of fact details.
End of spoiler.

Bort[]

Bort thinks the blue Alex is the useless one, and the red Alex is uncontrollable.

Manga Spoiler

Chrysoberyl[]

It's assumed they were very close with their partner, Chrysoberyl, as others have mentioned how greatly losing Chrysoberyl affected Alex. Alex's demeanour was different before their loss, and it's possible that the red side developed as a cause of this. Their obsession with Lunarians also stems from losing Chrysoberyl, Alex remarking that thinking about Lunarians reminds them of why they hate Lunarians so much and to continue on with their research. However this changes on the Moon where after 220 years, Alex mentions they have forgotten about Chrysoberyl and have seen that the Lunarians aren't as bad as previously thought.

Benitoite[]

Alex seems to have a lot of trust in Benitoite as they demand that Benitoite be their handler and assistant on the Moon. Benitoite can be seen being a host at Alex's restaurant. However, Alex orders and pushes Benitoite around so it isn't a very mutual relationship.

End of spoiler.

Other Gems[]

Like how other Gems treat each other, it can be assumed that Alexandrite had a nice relationship with their other siblings, often referred to as aniki (兄貴, 'brother/bro') by them. However recently they've become more detached and willing to help Phos destroy the Earth Gems by triggering their berserk mode, though Alex does tell them that they will be repairing them all after it's over.

Gem Info[]

  • Mineral: Oxide
  • Chemistry: BeAl2O4
  • Color: Bluish green in daylight, purplish-red in incandescent light

Often described by gem aficionados as “emerald by day, ruby by night,” alexandrite is the very rare color-changing variety of the mineral chrysoberyl named after Czar Alexander II of Russia. Chrysoberyl is the third-hardest frequently encountered natural gemstone and lies at 8.5 on the hardness scale, between corundum (9) and topaz (8).

Ordinary chrysoberyl is yellowish-green and transparent to translucent. When the mineral exhibits good pale green to yellow color and is transparent, then it is used as a gemstone. The three main varieties of chrysoberyl are ordinary yellow-to-green chrysoberyl, cat's eye or cymophane, and alexandrite.

The alexandrite variety displays a color change (alexandrite effect) dependent upon the nature of ambient lighting. Alexandrite effect is the phenomenon of an observed color change from greenish to reddish with a change in source illumination. Alexandrite results from small scale replacement of aluminium by chromium ions in the crystal structure, which causes intense absorption of light over a narrow range of wavelengths in the yellow region (580 nm) of the visible light spectrum. Because human vision is more sensitive to light in the green spectrum and the red spectrum, alexandrite appears greenish in daylight where a full spectrum of visible light is present and reddish in incandescent light which emits less green and blue spectrum. This color change is independent of any change of hue with viewing direction through the crystal that would arise from pleochroism. Alexandrite is a birthstone for June, along with pearl and moonstone. Alexandrite is also the gem for the 55th wedding anniversary.

Source: Wikipedia | GIA

Quote[]

"What was that...? I want it alive...! - Alexandrite, about "Shiro".

”月人のことを毎日考えて 新鮮な憎しみを 忘れないためよ”

"I think about the Lunarians everyday so I won't forget the fresh feeling of hatred I have for them."

- Alexandrite when asked by Phos if they like the Lunarians.

Trivia[]

  • Alex's two modes and the accompanying color change to their hair is a reference to the fact that alexandrite in real life changes colors depending on lighting conditions.
  • Alexandrite is the only gem who has a condition activated by interacting with another species.

Gallery[]

Characters
Gems
KongoPhosphophylliteMorganiteGosheniteRutileRed BerylBenitoiteCinnabarJadeDiamondBortEuclaseNeptuniteYellow DiamondZirconObsidianAmethyst 84Amethyst 33AlexandriteAntarcticitePadparadschaGhost QuartzCairngormWatermelon TourmalineSpheneHemimorphitePeridot • Unknown 28th Gem/s
Morganite (New)Goshenite (New)
HeliodorGreen DiamondRubySapphirePink TopazPink FluoriteLapis LazuliTopazChrysoberylBlue ZoisiteAquamarineApophylliteRed DiamondFluoriteSphaleriteEmerald
Lunarians
AechmeaBarbataCicadaQuietaKimaShiroLadraBee
Admirabilis
VentricosusAculeatusVariegatusConvallarius
Others
PebbleKongo's Brother
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