The Vintage Black Onyx & Diamond Ring

This extravagant ring bears a rectangular black onyx panel with a brilliant cut diamond in its centre, for approximately 0.43ct. A trefoil design is both above and below the diamond, which adds dimension and flair to the design. The onyx has a fine beaded edge of white metal which joins to polished solid walls. The shoulders feature a white metal engraved navette to both sides, which leads into a plain band towards the back of the ring. This ring, circa 1920-1940 is stamped for 9ct to the band and 18ct to the back panel. It is in good condition with light marks commensurate with age. Please find the Expert Report, (see the end image in the gallery) for more detailed information. Estimated diamond colour: H-I Estimated diamond clarity: Si1