Cushion Cut Green Amethyst & CZ Ring in solid sterling silver. Material: Sterling Silver. Total metal weight: 5.2 gr. Cushion cut green amethyst (11 x 11 mm) = 4.75 ct total. Round brilliant cut cubic zirconia (1 x 1 mm). Colour: Green. Stone cut: Cushion Cut. Occasion: Engagement, Wedding, Graduation. Anniversary: 6th Anniversary. Birthstone: February.