Cushion Cut Multiple Gemstone Quad Ring in solid sterling silver. Size: 16 x 16 mm (0.63 x 0.63 in). Material: Sterling Silver. Total metal weight: 4.0 gr. Cushion cut Swiss blue topaz (5 x 5 mm) = 0.56 ct total. Cushion cut peridot (5 x 5 mm) = 0.56 ct total. Cushion cut amethyst (5 x 5 mm) = 0.56 ct total. Cushion cut citrine (5 x 5 mm) = 0.56 ct total. Colour: Blue. Stone cut: Cushion Cut. Occasion: Wedding, Formal Dress, Mother's Day. Anniversary: 4th Anniversary. Birthstone: November.