Moissanite in nature is a very rare mineral. Moissanite in jewelry industry are synthetic, but they are centerpiece worth to consider. Moissanite has more fire than diamond. It has more brilliance too (comparing between similar grade moissanite and diamond). And they are conflict-free, with no mining involved. Moissanite is gaining popularity among the younger generation, earth friendly conscious people, and still offer lasting quality. Its hardness at 9.5 Mohs making it the second hardest mineral after diamond. It is harder than corrondum.