Sterling Silver Cocktail Ring with Purple CZ Stones - Sterling Silver Amethyst, Clear CZ Ring for Women Made with 925 Sterling Silver with Rhodium Plating to prevent tarnish. Stones are AAA grade cubic zirconia stones. They are prong set (not glued). Face Height: 10 mm (0.41 inch) Stone: Amethyst, Clear CZ Gift wrap options available at checkout for under $0.99.