An 18ct gold boulder opal ring.

AN 18 CARAT GOLD BOULDER OPAL RING, a round opal in a bezel setting to a tapering shank. Hallmarked Birmingham 1899, ring size O, 5.6 grams

Jewelry: Ladies Estate Vintage 14k Gold Boulder Opal Ring Metal: 14K yellow gold Gram Weight: 8.4 Ring Size: 7 Dimensions: 18mm x 14mm profile Please note that this lot has a confidential reserve. Whe

An 18ct gold opal ring, four brooches and an Omega watch. To include an Edwardian 18ct gold graduated opal five-stone ring, an Edwardian 9ct gold amethyst and split pearl bar brooch, together with a 9

METAL: 14k Gold. MEASUREMENTS: Ring size 5.25, top is 24mm x 14mm. GEMSTONES: Boulder opal. TESTED: 14k. WEIGHT: 3.4 grams.Gemstones have not been graded for color and clarity ,and tested for clarity

14K yellow gold ring set with a boulder opal, the outer edge in layers of brown and the center with blues, greens and some reds, approx. 11 x 28mm, ring size 7. The pendant with a pear shaped opal wit

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.

14kt Yellow Gold and boulder Opal ring in filigree setting.

A late Victorian 18ct gold opal five-stone ring. The graduated oval opal cabochon line, with rose-cut diamond spacers. Hallmarks for Birmingham, 1896. Ring size O1/2. Weight 4.4gms.

14K white gold ring, brightly polished, featuring centered prong set boulder opal cabochon, weighing approx. 2.65 carats, further adorned with 6 prong set round brilliant cut diamonds weighing a total

An early 20th century 18ct gold opal five-stone ring. The graduated oval opal cabochon line, with diamond point double spacers. AF. Hallmarks for Birmingham, partially indistinct. Ring size O. Weight

An Edwardian 18ct gold opal five-stone ring. The oval-shape opal cabochon graduated line, to the openwork gallery and tapered band. Hallmarks for Chester, 1901, partially indistinct. Weight 2.4gms.

A 14 Karat Yellow Gold, Boulder Opal and Diamond Ring, containing one freeform boulder opal measuring approximately 36.00 x 25.80 mm and 126 round brilliant cut diamonds weighing approximately 1.25 ca

A 18ct yellow gold Australian Opal ring. Features six free form cabochon cut Australian Opal with strong play of colours in Green and Blue. Size 5 US(L½) and weight 4.48g.

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 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

set with a large oval opal surrounded by textured gold surround, a/f, total weight 11.73gm

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.

14K gold cocktail ring featuring a large boulder opal measuring 26mm x 19.7mm x 13mm. Ring size is 8. Ring sits approx. 13mm from finger. Marked 14K. Weight is 21.4 grams. Opal has internal and extern

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.