Antique Style Art Deco Design Lab-Created White Opal With Red & Green Fire .925 Solid Sterling Silver Filigree Ring. The Top Of The Ring Measures 3/8 Inches In Length. Set With The Highest Quality 10 x 5 mm Marquise Shaped Lab-Created Opal Stone. Inspired By The Original Designs Of The Victorian To The Art Deco Period, 1836-1935. Item Is Stamped 925. Our Silver Is Genuine 925 Sterling Silver.