Rhod. P. Silver Ring 7mm X 9mm Oval Australian Opal Three 1mm White Topaz Each Side - 1.5mm wide - Ring Size Options: 10 5 6 7 8 9 [ Potential Enhancement Methods: opal ] - Occasionally treated to enhance the color. Sometimes infused with wax, oil or plastic to enhance appearance and durability. [ Care and Handling: opal ] - Do not use ultrasonic cleaner or steamer. Avoid heat and contact with cosmetics, hair spray, perfume and household chemicals. Clean with a damp cloth or soft brush. [ Potential Enhancement Methods: white topaz ] - Usually irradiated and heated to produce color. Some topaz may be coated with a thin film of minerals applied through heat. [ Care and Handling: white topaz ] - Clean with warm soapy water and a soft brush or cloth.