Art Deco Style Genuine Blue Topaz .925 Solid Sterling Silver Filigree Ring. The Top Of The Ring Measures Just Over 3/8 Inches, 10.2mm In Length. This Adorable Antique Reproduction Ring Is Set With One 10 x 5mm Marquise Cut Genuine Blue Topaz 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.