Antique Style Lab-Created Opal & .925 Sterling Silver Filigree Ring. The Top Of The Ring Measures 3/8 Inches In Length. This Classic Timeless Piece Is Set With One Beautiful 9 x 7 mm 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.