Genuine Green Amethyst .925 Solid Sterling Silver Art Deco Style Filigree Ring. The Top Of The Ring Measures 10.5mm Just Over 3/8 Inches At The Widest Point, Set With One Round Faceted 7mm Genuine Green Amethyst Stone. Inspired By The Antique Styles From The Original Designs Of The Victorian To The Art Deco Period, 1836-1935. Item Is Stamped 925. Our Silver Is Genuine 925 Sterling Silver.