Stunning Mexican Fire Opal & Diamond Pendant Necklace 18K Yellow Gold.  (Please note that the opal has some hairline inclusions, though they are not very visible) 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 18K Yellow Gold Mexican Fire Opal: 1.24 ct 16 Diamond: 0.044 ct Opal Color: Beautiful play of the Orange, Yellow, and Green colors. Pendant Size: 16 x 7 mm (include hook/bail) Occasion: Birthday/Anniversary Chain: Free 18 inches Silver Chain or 18K Solid Yellow Gold Chain for Extra.