There is no helping them, they're too broken. The beings who used to be in those shards are so shattered, they don't know who they are or what's happening around them. They just seek out other Gems, looking for the missing pieces of themselves, trying to make themselves whole.

Peridot, "Gem Drill"

Cluster Gems, also known as Gem Mutants and Artificial Fusions, are forced fusions of former Gems. They were created by Homeworld Gems in the Kindergarten to serve as prototypes for the real Cluster. When Cluster Gems sense other Gems, they become aggressive in an attempt to recover their gemstones' missing shards and become "whole" again. They first began emerging in "Keeping it Together".


In general, Clusters take the form of limbs joined together to other appendages. The limbs are of mismatched colors, such as dark and light blue, rust, violet, olive green, mint gray, pale green and dull yellow, indicating that they originally belonged to different Gems.


Image Description Appearance(s)
A cluster that consists of a purple and blue arm fused together. "Keeping it Together"
Referred to as "Mini Cluster Gem" in the model sheets, this cluster consists of a blue hand and red foot fused together.
Referred to as "Hand Hand" in the model sheets,[1] this cluster consists of a purple and green hand fused together.
Cluster Hand Monster
Referred to as "Hand Cluster" and "Hand Cluster Gem" in the model sheets,[1] this giant variant of a cluster appears to be comprised entirely of limbs conjoined together in a single hand-and-forearm-shaped body, wrapped in what looks like a dark grey cloth. At its core, the fusion is comprised of four different shattered Gem Shards that are physically fused together. It possesses four large eyes. Its irises and visible Gem Shards are green, yellow, blue and purple. According to Garnet the four Gems were the shattered fragments of shattered Crystal Gems.
Cluster 4
A cluster that consists of a green and red foot fused together.
Referred to as "Arm Leg" in the model sheets,[1] this cluster consists of a yellow leg and a green arm fused together.
Cluster 5
A cluster that consists of a gray arm with a red and blue hand fused together.
Bed Cluster by Lenhi
Referred to as "Patient 1" in the Nightmare Hospital episode credits, [2] and as the "Bed Mutant" in its model sheet. This cluster has six arms and two legs. It takes a more human form, however two arms take the place of where a head would be and has two arms sticking out of its right side. Its right leg also ends with a mismatched lower leg that is much smaller than the part above. The limbs are in various colors such as orange, teal, gray, blue, and a dull purple. The location of its gem is unknown, assuming it is visible. "Nightmare Hospital"
Muscle Cluster
Referred to as "Patient 2" in the "Nightmare Hospital" episode credits,[2] and as the "Hallway Mutant" in its model sheet. This cluster has three arms and two legs. It has two large lumps where its face would be. Its left arm acts as a leg and is very long, huge and muscular. Attached to it is two parallel hands. It has two right arms. One of its legs is very small, not allowing it to act as a real leg. It comes in many mismatched colors, including yellow, spring green and dull purple. The cluster with the same appearance made a cameo in Earthlings, which was not explained since the "Hallway Mutant" was bubbled, and most cluster gems are unique.
Cluster - Boca - Braços - Pernas
Referred to as "Mouth Leg Mutant" in the model sheet, a cluster that has 6 feet but uses 4 of them as arms. Two of the feet are dark purple and the rest of its body is dull red. On the bottom it has a vertical mouth that opens to reveal a single eye. It also has a dull yellow arm as a tail. "When It Rains"
Cluster - Pé - Mão
Another cluster with a gray-blue hand, wrist and a dull red foot, but it appears to be bigger.
Referred to as "Mouth Torso Mutant" on the model sheet. A dull blue cluster with two legs, a round torso body and purple arms. It has a large mouth on its torso.
A cluster with a red leg, a yellow leg, a red round body and a large pink arm.
Referred to as "Hand Body Mutant" in the model sheet. A humanoid cluster with a red head with a single blue eye, and a yellow hand like body with three folded "finger arms" at the back.
A giant white-beige hand. The bottom is not seen, but it can walk.
Referred to as "Arm Eye Mutant" in the model sheet. A big cluster with a violet round body, a pair of blue feet, a blue hand on top and a reddish eye on the center.
A big hand cluster that is half red and half violet.
A small cluster with a blue arm and orange leg.
A big green and light blue cluster with three green fingers, four light blue fingers, and a light blue foot.
Referred to as "Foot Arm Mutant" in the model sheet, a cluster with a light green head that has one eye and mouth on its face, a light blue body and left hand, a giant green foot as it's right arm, and purple lower body.
Another Hand-Foot combination. "Gem Drill"
A slightly humanoid cluster with three lumps surrounding its gem.
Two arms stuck together.
Two legs stuck together.
Earthlings Cluster Gems Finished
The cluster Jasper was holding captive in Earthlings, it broke out and has not been seen since. It is similar to one of the cluster gems seen in "Nightmare Hospital" "Earthlings"
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A large and unstable cluster gem. "TBA"
Tumblr nui38hLNGB1rxy3lqo1 500
A semi-stable cluster gem "TBA"
Cluster group
The group of clusters bubbled by Ice. "TBA"
Lamejasphice cluster
Rgb cluster
Devilline cluster
A cluster made by Ice's and Heliodor's gem shards. "TBA"
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Tumblr oidjlfJJrd1rxy3lqo1 1280


Image Description
Multi-gem freakin' gemstone
The Hand Cluster's gemstone is a mix of four different gems joined into a single gemstone. It's located on the center of its "palm".

Bed Cluster Gem
The gemstone of the six-armed Cluster Gem - three shards fused at one point. One is teal, the other red, and the other gray.
A smaller Cluster taking the form of two forearms has two Gem Shards fused together into a V-shape, with smaller pieces stuck around the joint. One is blue, the other is purple. The shards are internal.
The gemstone of the cluster with a round violet body, three blue limbs, and an eye.
Big White Hand Cluster's gemstone.
The gem of the cluster with three lumps.
Gema del ciclope cluster
The gemstone of the Cluster with a Light Green head that has one eye and mouth on its face, a light blue body and left hand, a big green foot as it's right hand, and purple lower body.
Tumblr nvpdy0kwPA1uqnc7fo10 400
The gemstone of the cluster with a big blue hand and pink foot.
The gemstone of the Blue Hand with seven fingers and a foot Cluster.
Hallway Cluster Gem By King
The gemstone of the lumpy Cluster Gem. A large purple squarish shard, with small yellow and blue shards attached.
The gemstone of the small cluster with a blue hand and red leg.



When the Earth was no longer fit to be a Gem colony, Homeworld Gems decided to create the Cluster. Because the Cluster project was a hefty task, Homeworld Gems decided to create prototypes. They took the shattered remains of Crystal Gems from the Rebellion and forced their Gem Shards to fuse together through an unknown process. It has resulted in a new gemstone that holds the consciousness of the Gems fused with it. When this artificial Gem projects its physical form, they appear to be distorted monsters as they are composed of shards of former Gems, only pieces. These prototypes were left in the Prime Kindergarten Control Room, where they stayed dormant for thousands of years.

"Marble Madness"

The Cluster Gems make a semi-hidden cameo when Peridot is accessing the Facet Five control room.

"Keeping It Together"

Steven and Garnet encounter Cluster Gems in the Kindergarten, the Hand Cluster, and six smaller Cluster Gems. The appearance of the Clusters is so horrifying to Garnet that she becomes unstable to the point where she almost un-fuses. Ruby, through Garnet, states she believes the Cluster Gems were created as punishment by Homeworld for w:c:su:The Rebellion. The Cluster Gems are eventually "poofed" by Garnet and currently reside within one of her bubbles in the Burning Room.

"Nightmare Hospital"

Two Clusters are sighted across roads and taken to Dr. Maheswaran's workplace, mistaken as victims of car accidents and treated by doctors at the Hospital. Later, they break into the halls and try to attack Steven, Connie and Dr. Maheswaran, only to be poofed by Connie with Rose's Sword and then bubbled by Steven.

"When It Rains"

Peridot and Steven are assaulted by several of them when attempting to escape the Kindergarten before Steven forms a bubble and the Crystal Gems rescue them. This is the second time where the Cluster Gems are shown to have facial features (i.e., mouth, eyes); the first time being "Keeping it Together".

"Gem Drill"

Steven and Peridot are attacked by some prototypes while drilling to the earth's core to stop the Cluster, which is blasted back into the magma.


A Cluster Gem that looks similar to the bulky one from "Nightmare Hospital", was captured by Jasper and caged in the Beta Kindergarten, but managed to escape with a few Corrupted Gems during Jasper's battle against Smoky Quartz.



ve Fusion Gems
Crystal Gem Fusions
Double Fusions

Ajoite NavBox Amblygonite Navbox AmmoliteNavBox Angelite(RoseQuartz+Ice)NavBoxAngelite(Steven+Ice)NavBox AquaAuraNavBox Azurite Gems BorniteNavBox

Bustamite Gems Chalcedony (steven) NavBox Aquamarine navbox Cinnabar Gems DevillineNavBox GarnetNavBox

Malachite (Perma-Fusion) Navbox HauyneNavBox Kämmererite Navbox Lavender Quartz (pearl) NavBoxMixiteNavBox Opal Gems

PeacockTopazNavBox Phosphosiderite NavBox Rainbow Moonstone Gems RainbowQuartzNavBox CG Rhodonite Navbox RoseQuartz(Steven+Rose)NavBox Shigaite Navbox

SmokyQuartz(RoseQuartz+Amethyst)NavBox SmokyQuartzNavBoxStevonnie Gem Tangerine Quartz Navbox Image Violane Navbox Zoisite NavBox ScapoliteFusion Navbox

Triple Fusions

Angelite (greg) NavBoxAngelite (stevonnie) NavBoxAuraliteNavBox AurichalciteNavBoxBowenite Gems CelestineNavBox

Cuprite (Rose) Navbox Cuprite (Steven) Navbox Jeremejevite Navbox KolbeckiteNavBox KornerupineNavbox Lavendulan NavBox Lepidolite Navbox

Nadorite Navbox Image Roselite(Rose)NavBox Roselite(Steven)NavBox SardonyxNavBox Sarkinite NavBox

Scorzalite NavBox SugiliteNavBox Tanzan Quartz NavBox Tanzanite Gems VauxiteNavBox

Quadruple Fusions

Alexandrite Gems UnnamedFusionNavbox Blue Abalone Navbox Blue Lace Agate NavBox Laguna Agate NavBox LibetheniteNav

Scheelite Navbox Sogdianite NavBox Spurrite Gems Rose Water Opal Navbox Wendwilsonite Navbox

Quintuple Fusions

Mysquart Navbox Rainbow Fluorite Gems

Sextuple Fusions

Blue Aura Quartz NavBox GalaxiteNavbox Titanite NavBox

Homeworld Gem Fusions
Double Fusions

Aquamarine (fusion) Navbox Blush Quartz Navbox Cuprian Adamite Navbox EphesiteNavBox Garnet (Black Sapphire and Navy) Navbox Garnet (Pink Sapphire and 6MX) Navbox GreenDiamondNavbox Cinnabar (homeworld) NavBox

Garnet(handRuby backhandSapphire)NavBox Lavender Quartz (temporal) NavBox HomewolrdOpalNavBox HomeworldRainbowQuartzNavBox RhodoniteHomeworldNavbox FusionTemplateJasperMonster Orchid Diamond NavBox Opal(BluePearlArmAmethyst)NavBox

Opal(YellowPearlCheekAmethyst)NavBox Pink Tourmaline NavBox Platinum(NavBox) PrasioliteNavBox PurpleSapphire(fusion)NavBox Spessartine Gems Tiger's Eye (eyeball) NavBox Topaz (fusion) Navbox RDPD Navbox

Triple Fusions

HomeworldSardonyxNavBox HomeworldSugiliteNavBox Saleeite Gems

Quadruple Fusions

Homeworld Alexandrite Navbox

Quintuple Fusions

QuintRuby Navbox

Unaligned Fusions
Double Fusions

Brazilianite Navbox Rhodonite Navbox MoonNavbox

Sextuple Fusions


Septendecuple Fusions

Ruby (Septendecuple Fusion) Navbox

Cross-Alignment Gem Fusions
Double Fusions

Ajoite Pad Navbox Cinnabar (navy) NavBox Coquimbite navbox Ice CentipeetlefusionNavBox EmmonsiteNavBox Garnet(Sapphire Eyeball)NavBox Garnet (navy) NavBox

Heulandite Navbox Harmotomenav Hilgardite (steven) NavBox Hlouskite NavBox DoubleIce Navbox Kyanite NavBox

Kutnuhorite Navbox Kutnohorite (Steven) Navbox Lavender Quartz (blue pearl) NavBox Lavender Quartz (yellow pearl) NavBox LegranditeNavBox Malachite Gems Malachite (stable) NavBox NephelineNavBox HandNepheline Navbox

Orchid Quartz Nav Orpiment NavBox Shattuckite NavBox Shattuckite (skinny) NavBox Stolzite Navbox TopIce Nav

Tugtupite Gems TugtupiteWithStevenNavboxImage VanadiniteNavbox Verdite Gems ZaratiteNavBox

Triple Fusions

BloodstoneNavBox Ferrierite NavBox Goodletite Navbox Eulytine Navbox Moss Agate Gems

Pearl(triplefusion)NavBox Ruby (triple fusion) Gems OffColorSarkNav SeleniteNavbox Thulite Navbox

Quadruple Fusions

Bertrandite Navbox BotryogenNavbox Carpholite Navbox

CranberryZandriteNavBox Erythrite Navbox Ice Fusion Gem

Quintuple Fusions

Kosmochlor Navbox

Sextuple Fusions


Septuple Fusions

Ice (septuple fusion) Navbox Garnet(septupleRubyfusion)NavBox Garnet(septuplefusion)NavBox PlumbogummiteNavbox

Nonuple Fusions

Neptunite Navbox Super Sardonyx Navbox Sugilite(nonuplefusion)NavBox MegaFusion Rainbow Sapphire Navbox

Undecuple Fusions

Cadmoindite Navbox Champagne Aura Quartz Navbox

Other Fusions

Cluster Gems The Clustah

Scrapped Fusions
Double Fusions

Aquamarine Ice fusion navbox Champagne Diamond Navbox Iolite Gems LilaliteNavbox MicrolineNavBox Mimetite Navbox SmokyQuartz(Peridot)Navbox Kunzite Navbox

Quadruple Fusions

Pruskite Gems

Quintuple Fusions

Parisite Navbox