Cornflower Blue Sapphire & Diamond 18 ct. Cluster Ring

IMPORTANT CERTIFICATED 10.88 CT. CEYLON BLUE SAPPHIRE AND DIAMOND CLUSTER RING, in 18-ct gold. Set with a central cushion cut blue sapphire of 10.88 ct. flanked with diamonds totalling approx. 1.40 ct

NO RESERVE, SAPPHIRE AND DIAMOND CLUSTER RING. 18 ct gold. 3 blue sapphires totalling approx. 0.76 ct. surrounded by diamonds totalling 0.36 ct. size M 1/2. 2.3 grams.

IMPORTANT CERTIFICATED 4.18 CT. BURMA BLUE SAPPHIRE AND DIAMOND CLUSTER RING, set with a central cushion cut blue sapphire of 4.18 ct. surrounded by diamonds. Size M. 4 grams. Accompanied by GCS Londo

SAPPHIRE AND DIAMOND CLUSTER RING,18 ct. gold and platinum. Vibrant blue sapphire of approx. 1.36 ct.Diamonds totalling approx. 0.30 ct. F-G colour, VS/SI clarity.Size O. 2.7 grams.Fine ring, good con

SAPPHIRE AND DIAMOND CLUSTER RING, in 18 ct. gold and platinum. Set with a central cabochon cut blue sapphire, surrounded with diamonds. Size J 1/2. 2 grams.

SAPPHIRE AND DIAMOND CLUSTER RING, in 18 ct. gold. Set with a central octagonal cut blue sapphire of approx. 6.70 ct. surrounded with diamonds totalling approx. 0.36 ct. Size L 1/2. 4.5 grams.

SAPPHIRE AND DIAMOND CLUSTER RING, in 18 ct. gold. Set with a central blue sapphire of approx. 0.61 ct. Flanked with diamonds and a diamond on each shoulder totalling approx. 0.27 ct. Size M 1/2. 3 gr

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 platinum and 18ct gold sapphire and diamond cluster ring. The oval-shape greenish blue sapphire, with single-cut diamond surround and tapered sides. Estimated total diamond weight 0.20ct. Hallmarks

SAPPHIRE AND DIAMOND DOUBLE CLUSTER RING, in 18-ct gold. Set with 2 pear shaped blue sapphires totalling approx. 0.84 ct. Both flanked with diamonds totalling approx. 0.20 ct. Size M. 2.2 grams.

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.

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

ART-DECO SAPPHIRE AND DIAMOND 3-CLUSTER RING. In 18 ct. gold and platinum. Set with 3 blue sapphires totalling approx. 1.31 ct. and diamonds totalling approx. 0.90 ct. size M. 3.1 grams

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 sapphire and diamond flowerhead cluster ring, the blue sapphire measuring 9.4 x 7.5mm, on a textured gold shank. 18ct yellow gold. Weight 6.08 grams. Size N ½

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

14k Yellow gold set enhanced cornflower blue 5.34 carat brilliant cut sapphire with 1.12 CTTW of brilliant cut white diamonds as a bezel and down the sides of the band. Weight is 5.60 grams and size i

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 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