Oval Natural Australian Doublet Opal Pendant and Necklace 14k Yellow Gold. Free Domestic USPS First Class Shipping! Free Gift Bag or Box with every order! Opal—the queen of gemstones, is one of the most beautiful gemstones in the world. Every piece of opal is unique in its own ways and patterns. We only use high-quality Natural Opals (NO synthetics or imitations) for our jewelry. ---------------------------------------------------------------------------------------------------- ABOUT THIS PRODUCT Solid 14k Yellow Gold Australian Doublet Opal: 0.35ct Metal Color: Golden Opal Color: Blue, Green (may vary) Pendant Size: 13x6 mm (include hook/bail) Chain: Free 18 inches Gold Plated Silver Chain or 18K Solid Yellow Gold Chain for Extra.