Moissanite is comparable to other popular gemstones including diamond, ruby, sapphire and emerald on key characteristics such as hardness, fire and brilliance. On the Brilliance Refractive Index, moissanite is more brilliant than any other gemstone, ranging from 2.65-2.69 on the scale. Its fire dispersion is over 4x greater than any other popular gemstone. On the MOHs hardness scale, moissanite comes in second only to a diamond, measuring at 9.25. In addition, moissanite's durability is excellent, meaning it will survive daily wear and tear.