Cushion Cut Emerald & White Topaz Ring in solid 9ct white gold. Material: White Gold. Total metal weight: 3.0 gr. Cushion cut emerald (8 x 8 mm) = 2 ct total. Round cut white topaz (1 x 1 mm) = 0.28 ct total. Colour: Green. Stone cut: Cushion Cut. Occasion: Wedding, Mother's Day. Anniversary: 20th Anniversary, 35th Anniversary. Birthstone: May.