A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, the

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

AN ANTIQUE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, the navette shaped face set with a cushion cut blue sapphire of 1.18 carats, within a surround of old European brilliant cut di

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 RING in 18ct yellow gold, the navette face set with an oval cut sapphire of 2.20 carats in a border of round cut diamonds, the diamonds all totalling 0.5-0.7 carats, British hal

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold and silver, set with three oval cut sapphires in an open border set with single cut diamonds, stamped 750, size P / 7.75, 6.8g.

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold and platinum, the circular face set with pattern of step cut sapphires and round cut diamonds, further diamonds accenting the band, stamped 18ct PLAT, s

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold and platinum, the circular face set with step cut sapphires and round cut diamonds, further diamonds accenting the band, stamped 18ct PLAT, size N / 7,

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

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a round cut sapphire of 0.42 carats in a border of single cut diamonds, stamped 18CT, size O / 7, 2.0g.

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 SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with three round and cushion cut sapphires, punctuated by pairs of rose cut diamonds, maker's mark 'E&S', full British hallmarks for 18ct

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.

NO RESERVE - AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a row of alternating round cut sapphire and rose cut diamonds, full British hallmarks for 1902, size N1/2 / 7, 2.5g.&nbs

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.

AN ANTIQUE EDWARDIAN SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with round cut sapphires and rose cut diamonds, full British hallmarks for Birmingham 1918, size R1/2 / 9, 1.9g.

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 round cut sapphires accented by rose cut diamonds, partially rubbed British hallmarks for 18ct gold, size M / 6, 3.5g.

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.

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of 1.53 carats in a cluster of old cut diamonds, each shoulder set with a further old cut diamond, the diamonds a

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with an oval cut sapphire, in a halo of old mine cut diamonds, to stylised shoulders, stamped with maker's mark and 18CT & PLA

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with an oval cut blue sapphire of 1.36 carats within a border of round cut diamonds, with further diamonds set to the shoulder

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with an oval cut sapphire of approximately 1.70 carats in a border of round brilliant, old and single cut diamonds, the stepped shou

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