Alexandrite & Diamond Ring in solid 9ct white gold. Size: 9.5 x 6.4 mm (0.37 x 0.25 in). Material: White Gold. Total metal weight: 2.6 gr. Oval cut alexandrite (8 x 6 mm, grade AAA) = 1.5 ct total. Round brilliant cut diamond (1 x 1 mm, I colour, I1 clarity) = 0.04 ct total. Colour: Colour Changing. Stone cut: Oval Cut. Anniversary: 55th Anniversary. Birthstone: June.