Tourmaline & CZ Paraiba Allure Statement Ring in solid sterling silver. Size: 12.7 x 12.7 mm (0.5 x 0.5 in). Material: Sterling Silver. Total metal weight: 6.0 gr. Oval cut tourmaline (10 x 8 mm) = 3 ct total. Round brilliant cut cubic zirconia (1 x 1 mm) = 1 ct total. Colour: Green. Stone cut: Oval Cut. Occasion: Wedding, Mother's Day, Graduation.