White Fire Opal, White Opal Ring, Gemstone Jewelry Ring, Womens Fire Opal. This ring contains a natural Australian White Opal Gemstone measuring 7x9mm in a prong setting. This ring is 925 sterling silver and platinum plated, also available in gold or rose gold plating. This item includes a gift box and a certificate of authenticity with purchase. This item is made to order, please allow up to 10-15 days for processing and delivery.