Graceful American Deco ring by Otsby and Barton. Set with a highly domed black onyx studded with a single small diamond with interesting details on the shoulders.
Measurements: 17.8mm x 13.9mm at the onyx set-top.
Materials: 10k Yellow Gold, Onyx, and a small diamond in a white gold plaque.
Size: 7, this ring can be sized up or down 2 sizes for no extra charge.
Condition: Excellent vintage condition.
Era: Circa 1930's