Cushion Cut Swiss Blue Topaz & White Topaz Pendant Necklace in solid 9ct white gold. Size: 9.1 x 22.4 mm (0.36 x 0.88 in). Material: White Gold. Total metal weight: 2.1 gr. Cushion cut Swiss blue topaz (11 x 9 mm) = 4.5 ct total. Round cut white topaz (1.3 x 1.3 mm) = 0.17 ct total. Colour: Blue. Stone cut: Cushion Cut. Occasion: Wedding, Mother's Day, Graduation. Anniversary: 4th Anniversary. Birthstone: November.