Spinel-A is a gem from a dark world called "Everworld".

She served black Diamond (the strongest diamond of all)

After losing Oats(female), her partner to the dark war, Spinel-A became closed off, sad, and heart broken..

Spinel-A fought with a guitar axe with a reddish beams of light, similar to Spinel's rejuvenator.

prefers the name Spinel-A  just so she isn't confused with homeworld's spinel.

Unlike Spinel, Spinel-A, has never been abandoned in a garden but she was used as a product of war