Art Deco Diamond & Onyx Filigree Dinner Ring

Centering an Old European cut diamond weighing approx. 0.10ct., on a black onyx tablet, within a filigree, openwork and milligrained frame, set with eight Old European cut diamonds weighing approx. 0.24ctw and four Old European cut diamonds weighing approx. 0.08ctw. Fashioned in platinum. Size 7.