Small Minimalist Round Australian Doublet Opal Stud Earrings 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 Natural Australian Doublet Opal: 0.10 ct Metal Color: Golden Opal Color: Blue/Green Style: Stud, Push Back Earring Size: 4 x 4 mm Occasion: Birthday/Anniversary