Yes, 10mm spheres! The biggest spheres ever. These black spheres are the biggest, baddest spheres we have ever seen. 100% perfect - perfect polish, perfect color, perfect fire with a high-gloss finish ready to be set in glass. Like all of our black opals, these 10mm black spheres have an opaque black base with brilliant flashes of predominantly red fire along with flashes of green and blue fire.
Did you know our Gilson Created Opal does not decompose, off gas or release any substances when heated to very high temperatures? Read more about our testing here