His skin was a darker shade of green while his bodysuit is more metallic with some patterns of spandax. In Race Against Time, Diamondhead's skin was semi-translucent. In Destroy All Aliens, Diamondhead looked the same as in the Original Series, except his eyes had jewel-like facets and his outfit had detailed textures. In Back with a Vengeance, Diamondhead wore a yellow raincoat. In the Original Series, Diamondhead had yellow eyes and wore a sleeveless uniform that was black on the right half and white on the left with a black patch on the left shoulder where the original Omnitrix symbol was.

He sports four crystal shards on his back and has a sharp head.