Astral Onyx
When first exploring the caverns that would become Lavender Mines, these gems were largely ignored for looking nearly identical to regular onyx in their unmined/uncut form but after digging them out and polishing them up they turned out to be more interesting under the surface. A mostly purple stone with a monocromatic surface that shifts from jet black to grey to snow white, this gem is ideal for any one looking something glamourous but subtle or to say that there's more to them than what meets the eye.