Antique 10k yellow gold ring featuring a rectangle cut faceted amethyst in a four-pronged setting. This art deco cocktail ring was made by Ostby Barton, American art deco jeweler.
Great antique condition
Size: 7
Weight: 3.1 grams
Band: 1.5 mm
Amethyst: 9.7 mm x 8.1 mm rectangle cut
Hallmarks: 10k, ‘OB’ for makers mark