Blue Opal & CZ Teardrop Drop Earrings in solid sterling silver. Size: 9.1 x 25.4 mm (0.36 x 1 in). Material: Sterling Silver. Total metal weight: 2.3 gr. Pear cut blue opal (7 x 5 mm) = 0.75 ct total for pair. Round cut cubic zirconia (1 x 1 mm). Colour: Blue. Stone cut: Pear Cut. Occasion: Mother's Day. Anniversary: 14th Anniversary. Birthstone: October.