What is Moissanite?: "With a refractive index of 2.65-2.69, moissanite exhibits more brilliance than diamond. And thanks to a dispersion that’s 2.4 times that of diamond, moissanite bends light into mesmerizing rainbow flashes of fire… over two times more than diamond, ruby, emerald or sapphire. By day and by night, moissanite simply dances with light."