Almost no one can tell the difference between a moissanite and a diamond. In fact, a moissanite is sparkly than a diamond! A moissanite has a higher refractive index — about 2.65–2.69. And a diamond has around 2.42. That means moissanite bends and reflects more light back to your eye — giving it a brighter, flashier sparkle. These pieces are breathtaking!!! LTKStyleTip LTKTravel LTKFindsUnder100