34497a3fe0ef52949a1ba8e99894ed69 This article belongs to the Classic Continuity
Oh, man! Diamondhead and Grey Matter? I'm a razor-sharp hood ornament.

Diamond Matter is the combination of Diamondhead and Grey Matter's DNA. He cannot be accessed unless the faceplate of the Omnitrix is broken or by using the Biomnitrix.


Diamond Matter is slightly bigger than Grey Matter. He has Diamondhead's crystalline skin, as well as the spikes on his back and head, and Grey Matter's eyes and mouth.

Diamond Matter wore a uniform that was white with black cuffs on the left and black with white cuffs on the right, and wore the Omnitrix symbol on his chest.

Powers and Abilities

Diamond Matter3

Diamond Matter shooting crystal shards

Diamond Matter had Diamondhead's ability to alter the shape of his limbs, but his strength is reduced by Grey Matter's size. However, Grey Matter's super intelligence allowed him to shoot diamond shards with excellent precision.


Ben 10

  • In Dr. Animo and the Mutant Ray, Diamond Matter battled Heatbat and briefly got eaten, then thrown up by an alligator. He then sliced his way through some swamp trees to clear the gang's airboat's path until he reverted.


Ben 10

Season 2

Naming and Translations

Language Name Origin
Russian Алмаз и Гуманоид From алмаз, diamond and и and, гуманоид, humanoid
Spanish (HA) Diamante Gris From gris, grey; and diamante, diamond.


  • Diamond Matter's voice is similar to Diamondhead's in the original series, but higher-pitched.
Introduced in Ben 10 ArctiguanaBlitzwolferBuzzshockCannonboltDiamondheadDittoEye GuyFour ArmsFrankenstrikeGhostfreakGrey MatterHeatblastRipjawsSnare-ohSpitterStinkflyUpchuckUpgradeWay BigWildmuttWildvineXLR8
Introduced in Alien Force Alien XBig ChillBrainstormChromastoneEcho EchoGoopHumungousaurJetrayLodestarNanomechRathSpidermonkeySwampfire
Introduced in Ultimate Alien AmpFibianArmodrilloChamalienClockworkEatleFasttrackJuryriggNRGShocksquatchTerraspinWater Hazard
Introduced in Omniverse AstrodactylAtomixBall WeevilBloxxBullfragCrashhopperFeedbackGravattackGutrotKickin HawkMole-StachePesky DustThe WorstToepickWalkatroutWhampire
Ultimate Aliens AlbedoArctiguanaBig ChillCannonboltEcho EchoGravattackHumungousaurRathSpidermonkeySwampfireWay BigWildmutt
Fusion Aliens Atomic-XBig ChuckCrashockerDiamond MatterFourmungousaurHeat JawsHumungoopsaurStink ArmsUprigg
Unseen Aliens Decagon VreedleRocksSquidstrictorVentrilosquid
Unseen Fusion Aliens GravadactylXLRG
Future Aliens SandboxShellheadSnakepit
Retconned Eon
Non-Canon AntigraviteslaBob the BlobCartoon Network AlienInvinciblePlantapocalypsePortalerShadowmanStretcheleoThriller Whale

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