Stone: Certified Moissanite, D Color Number of Stones: 2 Total Carat Weight: 4.0 Metal Finish: 18K White Gold Metal Material: S925. 100% hypoallergenic Setting: 6 prong Each purchase comes with a certificate of authenticity ABOUT MOISSANITE: Moissanite tests as a diamond on the thermal diamond tester and is the most BRILLIANT gemstone. It has a hardness score of 9.25 on the MOH’s scale for hardness, and more durability than sapphire, ruby, or emerald. Diamond scores a 10 in comparison. Moissanite are NOT mined diamonds. Mined diamonds are often extracted from sensitive war zones in Africa, making the process environmentally damaging and socially unethical. Mining has carbon footprint, with land clearing and solid waste production as its major consequences.