Metal Type: Sterling Silver Metal Stamp: 925 Gemstone Type: Lab White Opal, Simulated Diamond Gemstone Shape: Marquise, Round, Oval Gemstone Creation Method: Simulated Center Stone Size: 8mmx6mm Ring Measurements: 9mm Available in different metal colors & stone colors as well. Please message me for inquiry! Vintage Art Deco Oval Lab White Opal Wedding Engagement Bridal Ring Marquise Round Diamond Cz Accent 925 Sterling Silver