Edwardian-Art Deco Style 4 Carat Mystic Quartz 925 Sterling Silver Filigree Ring. The Top Of The Ring Measures 1/2 Inch In Length & The Stone Is 10 mm In Diameter. This Timeless Antique Inspired Piece Is Set With One High Quality Mystic Quartz 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.