18ct gold, opal and diamond ring

An Edwardian 18ct gold opal and diamond ring. The oval-shape opal line, with old-cut diamond spacers and scrolling gallery. Estimated total diamond weight 0.15ct. Hallmarks for London, 1903. Ring size

An early 20th century 18ct gold opal and diamond ring. The graduated oval opal cabochon line, with old-cut diamond line spacers and tapered shoulders. Hallmarks for Birmingham. Ring size Q1/2. Weight

An 18ct gold opal and diamond ring. The pear-shape fire opal, to the brilliant-cut diamond line sides and plain band. Hallmarks for Birmingham. Weight 4.5gms.

An early 20th century 18ct gold opal and diamond ring. The oval opal cabochon, to the single-cut diamond and circular opal cabochon sides. Weight 3.2gms.

An 18ct gold opal and diamond cluster ring. The oval opal cabochon, within a single-cut diamond surround, to the tapered band. Estimated total diamond weight 0.35ct. Hallmarks for London, 1978. Ring s

18ct Gold opal and diamond set ring

18ct Gold opal and diamond set ring

An 18ct gold opal and diamond three-stone ring. The oval opal cabochon line, with single-cut diamond double spacers, to the scrolling sides and plain band. Hallmarks for London, 1961. Weight 4.9gms.

Three gold gem-set rings. To include an early 20th century 18ct gold opal and diamond dress ring, a 9ct gold garnet band ring, together with one further ring. One AF. Hallmarks for gold, one partially

18ct gold hallmarked black opal & diamond cluster ring: Outstanding ring supplied by Boodles, ring size T, 24 small but high grade diamonds. Opal measures 16mm x 11mm.

An 18ct gold fire opal and diamond dress ring. The oval-shape fire opal, with pave-set diamond shoulders. Estimated dimensions of fire opal 18 by 13 by 9mms. Hallmarks for Birmingham, 2011. Ring size

18ct gold three stone opal and diamond ring, size K, 4.1g.

An Edwardian 18ct gold opal and diamond seven-stone ring. The graduated oval opal cabochon line, with single-cut diamond line spacers. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham,

An early 20th century 18ct gold opal and diamond three-stone ring. The graduated oval opal cabochon line, with old-cut diamond double spacers. Estimated total diamond weight 0.10ct. Ring size L1/2. We

18ct Yellow gold opal and diamond flower head ring

A mid 20th century 18ct gold and platinum, opal and diamond cluster ring. The opal cabochon, within a single-cut diamond surround. Estimated total diamond weight 0.10ct. Ring size O. Weight 2.6gms. Ov

An Edwardian 18ct gold opal three-stone ring, with old-cut diamond spacers. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham, 1903, partially indistinct. Ring size N. 3.8gms.

An 18ct gold ring set with an opal cabochon flanked by diamonds. Ring size approx. Q

A collection of gem-set jewellery to include a large 9ct gold mother-of-pearl and onyx set pendant, to a belcher link chain; a 9ct gold amethyst and diamond set ring, and 18ct gold opal and diamond se

An early 20th century 18ct gold diamond and opal dress ring. The oval-shape opal cabochon line, with old-cut diamond spacers. Hallmarks for Birmingham, 1916. Ring size N1/2. Weight 3.5gms. Overall con

An Edwardian 18ct gold graduated opal three-stone ring, with old-cut diamond spacers. Estimated total diamond weight 0.15ct.Hallmarks for Birmingham, 1905. Ring size O1/2. 5.3gms.

An 18ct gold opal and diamond novelty brooch, and an 18ct gold gem-set cluster ring. The brooch designed as a pair of sunglasses with oval opal cabochon lenses and brilliant-cut diamond bridge, the ri

AN ANTIQUE FIRE OPAL AND DIAMOND RING in 18ct yellow gold and silver, set with a cushion cut fire opal of 1.72 carats, within a border of single cut diamonds, stamped 18, size M / 6.25, 3.2g.

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.