Swiss Blue Topaz & Pearl Earrings in solid 9ct gold. Size: 8 x 25 mm (0.31 x 0.98 in). Material: Gold. Total metal weight: 1.0 gr. 2 round cut Swiss blue topaz (4 x 4 mm) = 0.5 ct total for pair. Colour: Blue. Stone cut: Round Cut. Anniversary: 4th Anniversary. Birthstone: November.