A VINTAGE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cabochon sapphire and an old cut

A VINTAGE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cabochon sapphire and an old cut diamond of 1.47 carats, accented by further old mine cut diamonds, French assay marks for 18 carat

A VINTAGE TURQUOISE, SAPPHIRE AND DIAMOND RING, BEN ROSENFELD 1972 in 18ct yellow gold, set with an oval turquoise cabochon of 7.35 carats, encircled by a border of round cut diamonds totalling 2.0-2.

A SAPPHIRE AND DIAMOND CLUSTER DRESS RING in 18ct yellow gold and platinum, set with a round cabochon blue sapphire of 0.97 carats within a border of old cut diamonds, stamped 18ct Plat, size L1/2 / 6

AN ANTIQUE EDWARDIAN SAPPHIRE AND DIAMOND RING, 1904 in 18ct yellow gold, set with three sapphires accented by old cut diamonds, leading to stylised shoulders, full British hallmarks partly obscured d

AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with alternating cushion cut sapphires and old cut diamonds, British hallmarks for 18ct gold, size O / 7, 3.1g.

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.

A VINTAGE SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of 0.65 carats, in a border of round brilliant cut diamonds, full British hallmarks for 18ct gold, size K

A VINTAGE SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of 0.65 carats, in a border of round brilliant cut diamonds, full British hallmarks for 18ct gold, size K

AN ANTIQUE EDWARDIAN SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with three oval cut sapphires and four old cut diamonds, full British hallmarks for Birmingham 1904, size P / 7.75, 3.2g.

AN ANTIQUE VICTORIAN SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with set with alternating round cut sapphires and old cut diamonds, British hallmarks for 18ct gold, size M / 6, 3.7g.

AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with three oval cut sapphires accented by pairs of old cut diamonds, D&F maker's mark, marked indistinctly, size K1/2 / 5.5, 3.6g

SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cabochon sapphire in a cluster of round cut diamonds, stamped 750, size O / 7, 4.0g.

AN ANTIQUE SAPPHIRE AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with three round cut sapphires and two old cut diamonds, full British hallmarks for 18ct gold, size M / 6.25, 2.8g.

AN ANTIQUE SAPPHIRE AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with three round cut blue sapphires and two old cut diamonds held in claw settings over scrolled detailing, stamped 18ct, size

AN ANTIQUE SAPPHIRE AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with three round cut blue sapphires and two old cut diamonds held in claw settings over scrolled detailing, stamped 18ct, size

AN ANTIQUE VICTORIAN SAPPHIRE AND DIAMOND FIVE STONE RING, 1896 in 18ct yellow gold, set with three sapphires alternating with two old mine cut diamonds, leading to stylised shoulders, full British ha

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cabochon sapphire in a border of round and single cut diamonds, British hallmarks, size R / 8.5, 5.4g.

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a round cabochon sapphire of approximately 7.18 carats, accented by trios of rose cut diamonds, stamped 750, size N / 6.75, 7.1g. 

A FRENCH SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire of approximately 3.57 carats accented by old cut diamonds, French assay marks, size J1/2 / 5, 10.6g. 

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with a trio of cushion and round cut blue sapphires within borders of old cut diamonds, stamped 18ct, size L / 5.75, 3.7g.

AN ANTIQUE SAPPHIRE AND DIAMOND RING 1911 in 18ct yellow gold, set with a trio of cushion cut blue sapphires, accented by two old cut diamonds, full British hallmarks for Birmingham 1911, size M / 6,

NO RESERVE - AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING, 1915 in 18ct yellow gold, set with a trio of graduated round cut blue sapphires accented by old cut diamonds, British hallmarks for Chester, 19

NO RESERVE - AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING, 1915 in 18ct yellow gold, set with a trio of graduated round cut blue sapphires accented by old cut diamonds, full British hallmarks for Cheste

AN ART DECO SAPPHIRE AND DIAMOND RING in 18ct yellow and white gold, set with a square step cut sapphire within a border of old cut diamonds, stamped 18ct, 2060, size P / 7.75, 2.4g.