3.07ct Unique Pattern Australian Boulder Opal Pendant Necklace 18K 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 18K Yellow Gold Australian Boulder Opal, 3.07 ct Pendant Size: 18 x 10 mm (include hook/bail) Opal Size: 12 x 10 mm  Metal Color: Gold Opal Color: Blue, Green Occasion: Birthday/Anniversary Chain: Free 18 inches Silver Chain or 18K Solid Yellow Gold Chain for Extra. ----------------------------------------------------------------------------------------------