6.38 ct Gray Opal - Trillion

This 6.38-carat opal is cut as a trillion measuring 12.4 x 20 x 6.4 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 carries no treatment of any kind, so the color you see is the color that came out of the ground.

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.