Vintage Art Deco Linen Fold Sterling Silver 9ct oval Amethyst Cocktail Ring sz 5.25

Art Deco era Arts & Crafts style - amazing linen fold silver setting c1920-40 with oval amethyst pale purple gemstone - approximately 13.5 x 17 x 8mm - approximately 9ct - marked only sterling - excellent original wearable condition - sz 5 1/4 - weighs 7 grams - some tarnish as I found it - unmarked - tested - very good vintage condition.