☑ AVAILABLE NOW☑ GENUINE AUSTRALIAN OPAL☑ FREE EXPRESS WORLDWIDE SHIPPING & INSURANCE PRODUCT DETAILS'Opal Queen' are attractive 18ct yellow gold stud opal earrings each claw set with a brilliant green and yellow-coloured, oval-shaped Lightning Ridge solid black opal and a sparkling white diamond. Opal size: 6mm x 4mmOpal shape: OvalOpal type: Solid black opalOpal colour: Green and yellowOpal origin: Lightning RidgeDiamonds: 2 (0.02 carats)Metal: 18ct yellow goldSKU: GOE019 These black opal earrings contain natural, ethically sourced Australian opals. Black Star Opal provides a signed Certificate of Authenticity upon purchase. Shipping and Delivery Information ABOUT BLACK OPALS Found only in Australia, mainly at Lightning Ridge in outback New South Wales, black opal is the world's rarest and most valuable type of opal. Ablaze with a rich and vibrant rainbow of colour set against a dark or black body tone, black opal is highly prized for its intense spectrum and features in the world's finest jewellery collections. If an opal's body tone is dark but not truly black, it is known as dark opal. Read more about Australian opals. tags: green yellow opal earrings 'Opal Queen' Green Yellow Opal Earrings