A sapphire and diamond cluster ring, the central claw

An aquamarine, sapphire and diamond cluster ring claw-set with an oval-cut aquamarine, in a border of round brilliant-cut diamonds, each shoulder set with a heart-shaped sapphire, to a plain band, sta

A sapphire and diamond cluster ring claw-set with an oval-cut sapphire, in a single border of graduated round brilliant-cut diamonds, to a plain unmarked shank (Ring size: K)

An early 20th century sapphire and diamond cluster ring, the central rectangular facetted sapphire surrounded by twelve pavé set old single cut diamonds in a scalloped edged setting with low pierced

Two gold sapphire and diamond rings, comprising a 9ct gold sapphire and diamond cluster ring, a central oval cut sapphire, to a surround of eight cut diamonds, flanked by a single eight cut diamond gr

A PINK SAPPHIRE AND DIAMOND CLUSTER RING, composed of a central oval-shaped pink sapphire within a baguette-cut diamond surround to similarly-cut and single-cut diamond shoulders, mounted in 18K gold,

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

CERTIFICATED 4.95 SAPPHIRE AND DIAMOND CLUSTER RING, set with a central rectangular blue sapphire of approx. 4.95 ct. Surrounded by 14 rose cut diamonds. Size M 1/2. 3.9 grams. Accompanied by GCS Lond

ANTIQUE PINK SAPPHIRE AND DIAMOND CLUSTER RING, set with a central pink sapphire of approx. 0.76 ct. Flanked by diamonds totalling approx. 0.96 ct. Size M. 3.1 grams. Accompanied by GCS London report

A ruby and diamond cluster ring, the central oval cut ruby claw set within a surround of marquise cut and brilliant cut diamonds, approximately 1.40 carats total, finger size M

SAPPHIRE AND DIAMOND CLUSTER RING, set with a central blue sapphire of approx. 1.26 ct. Surrounded by diamonds totalling approx. 0.12 ct. Size K. 3.6 grams.

An Art Deco diamond and sapphire cluster ring, the central square, step cut sapphire in millegrain mount to open work Greek key oval frame, set throughout with tweleve old brilliant cut diamonds in sq

A sapphire and diamond cluster ring, the oval cut sapphire claw set within a border of fourteen single cut diamonds to a plain tapered shank, size N, stamped '18ct'

SAPPHIRE AND DIAMOND CLUSTER RING, in platinum. Set with a central oval blue sapphire of 1.85 ct. Surrounded with diamonds totalling approx. 0.48 ct. Size O. 3.5 grams.

SAPPHIRE AND DIAMOND CLUSTER RING, in platinum. Set with a central oval blue sapphire of 1.85 ct. Surrounded with diamonds totalling approx. 0.48 ct. Size O. 3.5 grams.

SAPPHIRE AND DIAMOND CLUSTER RING, in platinum. Set with a central oval blue sapphire of 1.85 ct. Surrounded with diamonds totalling approx. 0.48 ct. Size O. 3.5 grams.

A Belle Epoque, emerald and diamond cluster ring, the central step-cut emerald with multiple claw mounts emanating from single stone, old brilliant cut diamonds set in teardrop shaped mounts to form a

A modern diamond cluster ring set in 18ct white gold, the central claw set round brilliant cut diamond, laser marked to the girdle 'CD 16-15851', surrounded by 16 pavé set diamonds, the shoulders eac

DIAMOND AND SAPPHIRE CLUSTER RING, EARLY 20TH CENTURY The central cushion-shaped diamond, weighing 1.65 carats, within borders of calibré-cut sapphires and single-cut diamonds, ring size Q Footno

A SAPPHIRE AND DIAMOND CLUSTER RING The cushion-shaped sapphire weighing 5.70cts set in a four-claw setting within a brilliant-cut diamond frame, mounted in 18K gold, diamonds approximately 1.20cts, r

A diamond cluster ring, the central oval cut diamond, estimated to weigh 11.45 carats, claw set within a surround of brilliant cut diamonds, to brilliant cut diamond set shoulders, finger size M

A diamond cluster ring, the central oval cut diamond, estimated to weigh 11.45 carats, claw set within a surround of brilliant cut diamonds, to brilliant cut diamond set shoulders, finger size M

A SAPPHIRE AND DIAMOND CLUSTER RING The oval-shaped pink sapphire within a four-claw setting, to a marquise and brilliant-cut diamond surround, mounted in gold, diamonds approximately 0.70ct total, ri

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.

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,