An onyx and diamond panel dress ring, 9ct white gold, Art Deco styled as an oval plaque shaped dress ring centrally featuring a polished piece of domed black onyx, detailed by a single millgrained diamond to centre, further detailed to each end of oval plaque with pierced rails of smaller brilliant cut diamonds set, the entire frame millgrained, flanked by a single tapered ruby to each shoulder, merging to a smooth band.