A LITTLE ABOUT MOISSANITE: moissanite is industry leading and is completely colorless. Some brands use moissanite that has a slight yellow hue, meaning it's not completely colorless and does not imitate a real diamond. Our moissanite outshines everything. They have a Mohs hardness rating of 9.25 out of 10 and will test positive as diamonds on most handheld diamond testers. If you want a large-carat, white gemstone, but you don’t have the money for a large diamond, moissanite is the way to go. It costs thousands less than Diamonds.