New 0.5 moissanite diamonds silver earrings, total 1 CT, white G color, VVS1 clarity. Jewelry box and GRA certification paper included! In sterling silver S925 Moissanite scores 9.25 on the Mohs Scale of Hardness. That makes it the hardest gemstone used in jewelry next to diamonds (which is a 10). Sparkle wise, moissanite has an even higher refractive index than diamonds, so it's even sparklier than a diamond. Moissanite can also resist heat just as well as diamond Bundle and Message me if you need more info