Black Opal & CZ Posy Pendant Necklace in solid sterling silver. Size: 9.1 x 22.4 mm (0.36 x 0.88 in). Material: Sterling Silver. Total metal weight: 3.82 gr. Oval cut black opal (10 x 8 mm) = 1.75 ct total. Round cut cubic zirconia (1 x 1 mm). Colour: Black. Stone cut: Oval Cut. Occasion: Mother's Day. Anniversary: 14th Anniversary. Birthstone: October.