NO RESERVE - A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire in a

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

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. 

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

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.

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

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

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of 1.67 carats in a cluster of round brilliant cut diamonds, British hallmarks, size O / 7, 4.6g.

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

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire in a cluster of round brilliant cut diamonds, indistinct full British hallmarks, size J / 4.75, 1.5g.

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 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 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 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

NO RESERVE - AN ANTIQUE EDWARDIAN SAPPHIRE AND DIAMOND RING, 1908 in 18ct yellow gold, set with three cushion cut sapphires punctuated by pairs of round cut diamonds, full British hallmarks for Cheste

A RUBY, SAPPHIRE AND DIAMOND SWEETHEART RING in 18ct yellow gold and silver, the double heart motif set with oval cut sapphire and ruby within a border of diamonds, below a diamond jewelled bow, full

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut sapphire within a halo of round cut diamonds, stamped 18ct Plat, size N / 6.5, 2

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

NO RESERVE - A PINK SAPPHIRE AND DIAMOND THREE STONE RING in yellow gold and platinum, set with an oval cut pink sapphire of 1.01 carats, between two round brilliant cut diamonds, stamped PLAT, size P

NO RESERVE - AN ANTIQUE EDWARDIAN SAPPHIRE AND DIAMOND RING, 1909 in 18ct yellow gold, set with a trio of round cut blue sapphires, the central sapphire within a border of rose cut diamonds, full Brit

A SAPPHIRE, EMERALD, RUBY AND DIAMOND RING in 18ct yellow gold, set with a square step cut emerald, oval cut ruby and sapphire, accented by round brilliant cut diamonds, stamped 750, size J1/2 / 5, 4.

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

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, the oval face set with four marquise cut blue sapphires accented by single cut diamonds, full British hallmarks, size J / 4.5, 4.8g. Guaranteed U