Princess Cut Swiss Blue Topaz Pendant Necklace in solid 9ct white gold. Size: 12.7 x 19.1 mm (0.5 x 0.75 in). Material: White Gold. Total metal weight: 0.97 gr. Princess cut Swiss blue topaz (8 x 8 mm) = 2.88 ct total. Colour: Blue. Stone cut: Princess Cut. Occasion: Wedding, Mother's Day. Anniversary: 4th Anniversary. Birthstone: November.