Generally speaking, all are much less tough than diamond. Moissanite essentially has the next refractive index than diamond, and when offered beside an equivalently sized and Slice diamond will show extra "fire". Sapphire is any gem-quality specimen in the aluminum oxide mineral corundum that's not red. Even though sapphires tend https://gemstones-near-me41841.techionblog.com/30557727/fascination-about-gemstones-pretoria