Diamondstone

"Diamondhead and Chromastone combined! Very interesting, Chromastone and Diamondhead are different species from the same world." - Ken Tennyson (As Grey Matter).

Ben 10,000 as Diamondstone
Diamondstone has Diamondhead's body shape with crystals poking out of his arms, shoulders, and head. Diamondstone has one eye and a purple color scheme.

Credit
The image of Diamondstone was created by RZGmon200.