Centering an oval opal measuring app. 8.9 x 6.8mm in a scalloped, black enamel* frame, flanked by two Single cut diamonds weighing app. 0.02ctw., fashioned in 10k. Unidentified maker's mark. Circa 1940. Size 6.25*Although vitreous enamel forms a hard, durable surface, it is susceptible to chipping and breaking upon impact.
