Heart Shaped Alexandrite Stud Earrings in solid 9ct white gold. Size: 6.4 x 12.7 mm (0.25 x 0.5 in). Material: White Gold. Total metal weight: 1.05 gr. Heart shaped alexandrite (6 x 6 mm, grade AAA) = 2 ct total for pair. Colour: Colour Changing. Stone cut: Heart Shaped. Occasion: Wedding, Mother's Day. Anniversary: 55th Anniversary. Birthstone: June.