An 18ct gold ring set with three opals and 4 diamonds

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. 

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 18 Carat Gold and Three Stone Opal Ring set with Diamonds... Stamped 18CT, Size N, weight 4.3g

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.

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 ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with three graduated oval opal cabochons, punctuated by pairs of old mine cut diamonds, British hallmarks for Birmingham, 1890, size S / 9, 5.

AN ANTIQUE VICTORIAN OPAL AND DIAMOND RING, 1897 in 18ct yellow gold, set with three graduated cabochon opals punctuated by pairs of old cut diamonds, full British hallmarks for Birmingham 1897, size

AN ANTIQUE VICTORIAN OPAL AND DIAMOND RING, 1897 in 18ct yellow gold, set with three graduated cabochon opals punctuated by pairs of old cut diamonds, full British hallmarks for Birmingham 1897, size

AN OPAL AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an opal cabochon between two old cut diamonds, stamped 18, size G / 3, 2.3g.

An 18ct yellow gold, diamond, and emerald cluster ring set with three round-cut emeralds within diamond reserves, size P 1/2, 3.4 grams

A THREE STONE DIAMOND RING in 18ct yellow gold, set with three round cut diamonds, British hallmarks, size 4 / I, 3.34g.

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

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.

ASSORTED VINTAGE 10K GOLD LADY'S RINGS, LOT OF FIVE, marked, comprising two set with an opal and three set with black onyx, three with additional melee diamond. Total weight: 10.4 grams. Second half 2

AN DIAMOND THREE STONE RING in 18ct yellow gold, set with three old mine cut diamonds all totalling 1.2-1.4 carats, stamped 18CT, size L / 5.5, 3.2g.

AN ANTIQUE PEARL AND DIAMOND RING in 18ct yellow gold, set with three pearls punctuated by pairs of old cut diamonds, stamped 18ct, size O / 7, 4.3g.

AN ANTIQUE MOONSTONE AND DIAMOND RING in 18ct yellow gold, set with three cabochon moonstone accented by rose cut diamonds, stamped 18CT, size O / 7, 4.8g.

A ladies cocktail ring set with fifteen 6.5 x 4 mm opals, three 3mm round opals, and one .15ct center diamond and eight approximately .12 ct diamonds. Size 5.5 and weight 11 grams.

Heavy 18ct gold (tested) three stone diamond and sapphire rubover set ring, each diamond approx 0.4 carat

AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cabochon opal in a cluster of round cut diamonds, British hallmarks, size H / 4, 5.2g.

Four gold diamond and gem-set rings. To include an 18ct gold diamond and garnet-topped-doublet three-stone ring, a 9ct gold opal cluster ring, together with two further 9ct gold rings. Estimated total

14K Yellow Gold and Black Opal Ring. The opal set between triangular mounts of three diamonds each, marked "Ga 14K." 4.0 g.

AN EMERALD AND DIAMOND THREE STONE RING in 18ct yellow gold, set with a cushion cut emerald between two round brilliant cut diamonds, British hallmarks, size J / 4.5, 2.9g.