Alexandrite Earrings in solid 9ct gold. Size: 6 x 13 mm (0.24 x 0.51 in). Material: Gold. Total metal weight: 0.5 gr. 2 round cut alexandrites (4 x 4 mm, grade AAA) = 0.5 ct total for pair. Colour: Colour Changing. Stone cut: Round Cut. Anniversary: 55th Anniversary. Birthstone: June.