Alexandrite & CZ Ring in solid sterling silver. Size: 22.4 x 12.7 mm (0.88 x 0.5 in). Material: Sterling Silver. Total metal weight: 2.7 gr. Oval cut alexandrite (9 x 7 mm, grade AAA) = 2.75 ct total. Round brilliant cut cubic zirconia (1.5 x 1.5 mm) = 0.5 ct total. Colour: Colour Changing. Stone cut: Oval Cut. Occasion: Mother's Day. Anniversary: 55th Anniversary. Birthstone: June.