Aquamarine & Diamond Three Stone Ring in solid 9ct white gold. Size: 15.9 x 6.4 mm (0.63 x 0.25 in). Material: White Gold. Total metal weight: 2.8 gr. Emerald cut aquamarine (6 x 4 mm) = 1.5 ct total. Round brilliant cut diamond (1 x 1 mm, I colour, I1 clarity) = 0.03 ct total. Colour: Blue. Stone cut: Emerald Cut. Anniversary: 19th Anniversary. Birthstone: March.