Stylish Australian Black Opal & Diamond Engagement Ring 18K Yellow Gold.   It is a top-quality Australian black opal. Please note that the stone has a sand spot. Free Domestic USPS First Class Shipping!  Free One Year Limited Warranty!  Free Gift Bag or Box with every order! Opal—the queen of gemstones, is one of the most beautiful and rarest gemstones on earth.  Every piece of opals has its colors and patterns, which is perfect for designers to create unique engagement rings for someone extra special.  We use 100% Natural & Ethically opal stones (NO synthetics or imitations) for our jewelry. --------------------------------------------------------------- ABOUT THIS PRODUCT 18K Yellow Gold Australian Black Opal, 0.51 ct 8 White Diamonds: 0.108 ct Opal Size: 8.5x4.5 mm Opal Body Tone: N2 Opal Brightness: B4 Very Bright Ring Size: 7 Opal Color: Reflects Red, Yellow, and Blue Colors. Occasion: Engagement/Anniversary