Oval-Cut Blue Lab-Created Opal + White Lab-Created Sapphire Ring Kay Jewelers Outlet Oval Shaped - Opal Size 8 x 6 Round Shaped - Sapphires 2.5 Prong setting for all stones. You'll adore the color and style of this iridescent lab-created opal ring. - Sterling silver - Features an oval-cut blue lab-created opal flanked by two round-cut white lab-created sapphires Content & Care Opal may be subject to enhancement processes treatments wax, resin or oil, which may not be permanent may require special care. Opals should not be cleaned by steam, ultrasonic cleaner, or any harsh cleaning agents or in warm soapy water because of its hydrophane nature. When cleaning your Opal jewelry, you should avoid chemicals of any type do not submerge in water to soak, simply use warm water a non-abrasive cloth or sponge. If your Opal gets wet, the color and transparency will change temporarily but it will revert to its original color in a few days. If you live in a desert climate with low humidity, it is advisable to store your Opal jewelry in a small zip lock bag with a damp cotton ball to provide a little moisture avoid drying out. Opals should be protected from blows, as exposed corners can chip. Sapphire is commonly subjected to enhancement processes or treatments such as heating and diffusion. Gently clean by rinsing in warm water and drying with a soft cloth. This item is electroplated with rhodium or finished with an e-coating. These finishes may wear off with frequent use.