Sapphire & Diamond 18ct Cluster Ring

18ct diamond & sapphire cluster ring, size M, weight 4.8g.

An asymmetric diamond, sapphire and 18ct white gold cluster ring, of oval outline with one side composed of an undulating curve of six pear cut sapphires, the rest of sixteen round brilliant cut diamo

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of approximately 4.11 carats in a cluster of round brilliant cut diamonds all totalling 1.4-1.6 carats, stamped 18

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

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 CLUSTER RING in 18ct white gold, set with a pear shaped sapphire of 1.20 carats, in a cluster of round brilliant cut diamonds totalling 0.12 carats, stamped Au750, size O / 7, 3

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 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

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct gold, set with an oval sapphire in a cluster of single cut diamonds, British hallmarks for 18ct gold, size M / 6, 4.6g.

NO RESERVE - TWO RINGS comprising a sapphire and diamond cluster ring, stamped 18ct, size M1/2 / 6.5, 2.7g, together with a textured gold band ring, full British hallmarks for 9ct gold, size O / 7.25,

A COLOUR CHANGE SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a central cushion cut sapphire of 5.13 carats, encircled by a border of single cut diamonds, later British import marks,

An 18ct gold sapphire and diamond cluster ring, An 18ct gold sapphire and diamond cluster ring, an oval mixed cut sapphire, approximately 5.40mm x 8.00mm, claw set to the centre of a surround of round

An 18ct gold diamond and sapphire cluster ring. The rectangular-shape sapphire line, with brilliant-cut diamond surround. Estimated total diamond weight 0.30ct. Hallmarks for Sheffield. Ring size M1/2

Two mid 20th century 18ct gold diamond and sapphire cluster rings. The first designed as an oval-shape sapphire within a single-cut diamond surround, the second designed as a single-cut diamond floral

An 18ct gold sapphire and diamond cluster ring. The rectangular-shape sapphire, with brilliant cut diamond surround and grooved shoulders. Sapphire weight 1.36cts. Total diamond weight 0.59ct. Hallmar

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a brilliant-cut diamond surround, to the tapered shoulders and plain band. Estimated total diamond weight 0.85ct, I-J co

18ct gold sapphire and diamond cluster ring: Pale blue oval sapphire approx. 1.2ct, ring size M, 4.1g. Insurance valuation from Prestons dated 2012 for £3500.

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the tapered shoulders and plain band. Estimated total diamond weight 0.30ct. Hallmarks

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire collet, within a baguette-cut diamond border. Estimated total diamond weight 0.75ct, H-I colour, VS clarity. Hallmarks for Birmi

An 18ct gold sapphire and diamond cluster ring. The oval sapphire, within a brilliant-cut diamond scalloped surround and tapered band. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham,