AN OPAL HALF ETERNITY RING in 18ct yellow gold, set with a row of round cabochon opals totalling

AN OPAL HALF ETERNITY RING in 18ct yellow gold, set with a row of round cabochon opals totalling 1.0-1.2 carats, stamped 14k, size O1/2 / 7.25, 1.14g.

AN OPAL ETERNITY RING in 18ct yellow gold, set all around with a row of round cabochon opals, no assay marks, size N / 6.75, 0.9g.

AN OPAL FULL ETERNITY RING in 14ct yellow gold, set all around with a row of round cabochon opals, stamped 14k, size T1/2 / 9.75, 1.2g.

AN OPAL AND DIAMOND DRESS RING in 18ct yellow and white gold, set with an oval cabochon opal accented by round brilliant and princess cut diamonds, the diamonds all totalling 1.2-1.4 carats, British h

AN ANTIQUE OPAL AND DIAMOND DRESS RING, 19TH CENTURY in 18ct yellow gold, set with a central round cabochon opal between two kite shaped cabochon opals, the central opal within a border of old cut dia

NO RESERVE - AN OPAL FIVE STONE RING, 1923 in 18ct yellow gold, set with a row of five graduated cabochon opals, full British hallmarks for Chester 1923, size V1/2 / 11, 3.4g.

A DIAMOND ETERNITY RING in 18ct yellow gold, set all around with a single row of round brilliant cut diamonds all totalling 2.31 carats, British hallmarks, stamped D2.31, size P / 7.5, 2.3g.

AN OPAL AND DIAMOND RING in 18ct yellow gold, set with a round cut diamond within a cluster of four cabochon opals, no assay marks, size N / 6.5, 5.4g.

A DIAMOND HALF ETERNITY RING in 18ct white gold, pave set with seven rows of round brilliant cut diamonds, the diamonds all totalling 1.8-2.0 carats, full British hallmarks, size N / 6.5, 8.3g.

A VINTAGE OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by trios of round cut diamonds, stamped 18ct, size S.5 / 9.25, 4.1g.

AN OPAL AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an oval cabochon opal between two round brilliant cut diamonds, stamped 750, size K1/2 / 5.5, 4.7g.

OPAL AND DIAMOND RING in 18ct yellow gold, set with a cushion-shaped cabochon opal in a border of round cut diamonds, with further round cut diamonds to the shank, unmarked, size M / 6, 4.5g.

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.

An Opal and Diamond Ring. 14 karat yellow gold mounting contains one round opal cabochon which is approximately 4.00 carats. Surrounding the opal are two rows of prong set round brilliant diamonds whi

AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cabochon opal of 9.50 carats in a border of round brilliant cut diamonds, the band accented by further diamonds all totalling 0.65 carat

ANTIQUE OPAL RING in 18ct yellow gold, set with five graduated cabochon opals, British Hallmarks for 18ct yellow gold, size O / 7, 3.2g.

A VINTAGE BLACK OPAL DRESS RING in yellow gold, set with a round cabochon opal, full British hallmarks for London 1974, size O / 7.25, 5.5g. 

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, stamped 18ct, size N / 6.75, 4.2g. 

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, inscribed JJ - H.B MCK 28/12/20, partial British hallmarks, size M / 6.25,

AN ANTIQUE EDWARDIAN OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, full British hallmarks for Chester 1904, size R1/2 / 8.75, 4.0g.&

AN OPAL AND DIAMOND RING in 18ct yellow gold, set with a cabochon opal in a border of single cut diamonds, stamped 18ct, size M / 6, 2.5g.

A VINTAGE OPAL AND DIAMOND RING in 18ct yellow gold, set with a cabochon opal between two old cut diamonds, stamped 18ct, size L / 5.5, 3.6g.

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with two cabochon cut opals, accented by old mine cut diamonds, to stylised shoulders, stamped 18CT, size O / 7.25, 2.6g.

AN AQUAMARINE AND DIAMOND HALF ETERNITY RING in 9ct yellow gold, set with a row of alternating round cut aquamarines and single cut diamonds, partial British hallmarks, size O / 7.25, 1.8g.