Lab Grown Emerald & Diamond Ring handcrafted in solid 18ct white gold. Single 4.5 ct lab grown emerald 40 diamonds total 0.2 ct. Emerald cut. Available from sizes H to Z including half sizes. Size: 15.7 mm (0.62 in). Material: 18ct White Gold. Total metal weight: 4.0 gr. 1 emerald cut lab grown emerald (12 x 10 mm) = 4.5 ct. 40 round cut diamonds (K colour I3 clarity) = 0.2 ct total. Colour: Green. Stone cut: Emerald Cut. Anniversary: 20th Anniversary 35th Anniversary. Birthstone: May.