Art Deco faceted Green Amethyst Knife edge 3 stones 18K ring 2.4g s8 JR9440

A turn of century elegant 18K yellow gold Green Amethyst ring, the center oval faceted gem is 8.0 x 6.0mm, the side round stones 4.0mm. Unique knife edge shank. Ring size 6.25, 2.4 grams, no hallmark, tested for 18K