ANTIQUE OPAL AND DIAMOND RING set with three cabochon

AN ANTIQUE OPAL AND DIAMOND RING in yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, partial British hallmarks, size R1/2 / 9, 3.8g.

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 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 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

A vintage 14K yellow gold ring. The crown is set with a row of three diamonds and two white opal cabochons. Unmarked. Total Weight: 2.2 grams. Elegant Mineral Stone Jewelry For Women. Dimensions: Ring

AN ANTIQUE OPAL AND DIAMOND CLUSTER RING set with a cabochon opal in a cluster of old cut diamonds, size M / 6, 2.9g.

A VINTAGE OPAL AND DIAMOND RING in yellow gold, set with three cabochon opals punctuated by pairs of single cut diamonds, no assay marks, size M / 6, 2.9g.

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 ANTIQUE MOONSTONE, ENAMEL AND DIAMOND RING in yellow gold, set with three cabochon moonstones within a scrolling border of blue enamel, accented by rose cut diamonds, no assay marks, size P / 7.5,

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 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.

ANTIQUE OPAL AND DIAMOND RING, in high carat gold. Set with 3 cabochon cut opals, accentuated with diamonds. Size L. 2.4 grams.

AN ANTIQUE TURQUOISE AND DIAMOND RING in 18ct yellow gold, set with three round cabochon turquoise accented by pairs of old cut diamonds, full British hallmarks for London 1900, size O / 7.25, 4.

Antique opal and diamond ring, set in 14kt yellow gold, approx. 1.0 ct oval opal cabochon (frosted), .35 ct. tw. Old European cut diamond sides, sz. 6 3/4, 3.1 grams. New bidders to Smiths - payment f

NO RESERVE - AN ANTIQUE OPAL AND DIAMOND DRESS RING, Made in yellow gold, Three graduated oval cabochon opals, Old European brilliant cut diamonds (one replaced with a round brilliant cut diamond), No

AN ANTIQUE OPAL AND DIAMOND RING, 19TH CENTURY in 18ct yellow gold, set with two cabochon opals and old cut diamonds, British hallmarks for Chester, 1898, size O / 7, 2.8g.

AN ANTIQUE OPAL AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a cabochon opal in a cluster of rose cut diamonds, stamped 18CT & PLATINUM, size M / 6.25, 2.7g. 

A 14K rose gold, opal and diamond ring. Composed of a 14K rose gold band set with 7 stones; three oval cabochons in six-prong crowns, with blue and green play of color and orange and yellow highlights

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

AN ANTIQUE OPAL AND DIAMOND DRESS RING in 18ct yellow gold, set with a trio of graduated oval cabochon opals, accented by pairs of old European brilliant cut diamonds, full British hallmarks (partly o