4.01 ct Gray Opal - Cushion

This 4.01-carat opal is cut as a cushion measuring 11.9 x 10.1 x 6.2 mm, with a gray body color, sourced from Ethiopia.

Opal is hydrated silica that can break white light into a play of living color, a fire no two stones repeat; it holds up to a fifth of its weight in water, which is why it glows in a way nothing crystalline does. It is entirely untreated; no heat, no enhancement, the color exactly as the earth made it.

Its exact combination of color, cut, and origin is its own, the kind of center stone you choose on purpose and build a piece around. Caveman Gems hand-selects every gemstone and films it in good light, to give you the truest look a screen can.