Two solid opal set signet rings of Varied design, one 9ct yellow gold, of classic Victorian style with a smooth flared shoulder, meeting to a central oval panel, set with a single solid oval cabochon opal, of deep blue and green spectral colours, bezel set with open back, the second, ring set in 14ct yellow gold, of modern square cushion shape, flush set with a solid semi black opal of varied colours measuring 14.5 mm, bezel set, merging to a smooth band of tapering form.