12 x 5mm.
Koroit opal stones are popular worldwide. In the past Koroit opals were not considered a rare opal.
But today opal lovers really appreciate the unique veined opal patterns in this opal.
Some blue flashes in this one
On the fence about this 4ct Koroit Boulder opal cabochon? Don't be. Let our satisfaction guarantee address your concerns.
Inventory Last Updated: Jul 05, 2022
Inventory Last Updated: Jul 05, 2022