Moissanite

 

Moissanite is harder than Sapphires, Rubies and other gemstones and only second in hardness to Diamonds at 9.25 Mohs. Believed to have been carried by a meteorite in trace amounts, silicon carbide in a labor intensive process has been hand faceted by master gem cutters to bring out the stone's natural brilliance. The fire that this gem produces is phenomenal.