Material of Ring: Quality Brass with 18K Rose / White Gold Plated (Extra coating plating 0.05 mil thickness for long lasting shine) Material of Crystals: Made with Swarovski Crystals Art 1028 XILION CHATON & Art 1088 XIRIUS CHATON Diameter of Main Crystal: SS22(5mm) Number of Main Crystals: 1pc Diameter of Small Crystal: PP11(1.7mm) Number of Small Crystals: 20pcs