A sapphire and diamond cluster ring in 18ct yellow gold, centred with a marquise-cut sapphire

A sapphire and diamond cluster ring in 18ct yellow gold, centred with a marquise-cut sapphire surrounded by eight table-cut diamonds, further flanked by two marquise sapphires, on bifurcated shoulders

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 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

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct yellow gold, set with a marquise cut sapphire between two marquise cut diamonds, full British hallmarks, size L / 5.75, 3.6g. 

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

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

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 - 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 LADIES 18CT YELLOW GOLD SAPPHIRE AND DIAMOND RING with marquise cut sapphire and diamond encrusted shoulders, total weight 4g, ring size I/J (Sapphire measures 10mm high)

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, the oval cut sapphire within a marquise shaped surround of round cut diamonds totalling 0.65 carats, British import marks, size O / 7.25, 3.2g.

10 marquise-cut sapphires and 12 round brilliant-cut diamonds weighing 2ctw, all in prong settings in 14K yellow gold. Weight 5.7g. Size 7.5.

Ladies' vintage 14 karat Yellow Gold cluster ring, in classic band design. Set with a multitude of marquise cut Sapphires, with the center stone encircled by round brilliant cut accent Diamonds. Marke

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.

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

Containing one pear shaped diamond, appx. 60carat, six pear shaped sapphires, and one marquise cut sapphire, with four graduated baguette sapphires on shank, total gross weight 3.85dwt, ring size 5-3/

14K yellow gold ring with eight pearls post set, three marquis-cut sapphires and one round-cut diamond. Ring approx size 8 and weighs approx 3.15 dwt.

A late Victorian 18ct gold vari-shape sapphire and old-cut diamond marquise-shape cluster ring, estimated total diamond weight 1ct, hallmarks for Birmingham 1890, ring size M, 5.7g

A VINTAGE SAPPHIRE AND DIAMOND RING, KUTCHINSKY 1966 in 18ct yellow gold, designed as a floral cluster of round cut diamonds within borders of round cut sapphires, signed Kutchinsky, full British hall

Vintage 14K yellow gold blue sapphire and diamond cluster ring, set with three pear-shaped and marquise shaped sapphires and three round brilliant cut diamonds; approx: 0.15 cttw., marked: "14KT / ©

AN UNHEATED VIOLET SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a central oval cut violet sapphire of 2.02 carats, within a navette border set with clusters of marquise and round brill

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.