A SAPPHIRE AND DIAMOND RING, centring a cushion-shaped sapphire within collet-setting, to a

A SAPPHIRE AND DIAMOND RING, centring a cushion-shaped sapphire within collet-setting, to a fancy-cut sapphire and single-cut diamond surround, ring size K

A SAPPHIRE AND DIAMOND DRESS RING The central cushion-shaped sapphire weighing 5.59cts within a four-claw setting and between half-moon-shaped diamond shoulders, mounted in 18K gold, diamonds approxim

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 SAPPHIRE AND DIAMOND GYPSY RING, composed of a central oval-shaped sapphire between fancy-cut diamonds, within collet-setting, mounted in 18K gold, total gross weight approx. 5.6g, ring size L

A sapphire and diamond cluster ring. The cushion-shape sapphire collet, within an old-cut diamond scalloped surround. Estimated total diamond weight 0.45ct. Ring size Q1/2. Weight 2.7gms.

SAPPHIRE AND DIAMOND RING The cushion-shaped sapphire within a surround of brilliant-cut diamonds, between similarly-cut diamond shoulders, ring size K Footnotes: Accompanied by a report from GCS stat

SAPPHIRE AND DIAMOND CLUSTER RING, 19TH CENTURY The cushion-shaped sapphire, weighing 5.74 carats, within a border of old brilliant-cut diamonds, between scroll engraved bifurcated shoulders in 18 car

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 The cushion-shaped sapphire, within a brilliant-cut diamond surround, between heart-shaped diamond cluster shoulders, heart shaped diamonds approx. 0.50ct total, ring

SAPPHIRE AND DIAMOND CLUSTER RING The cushion-shaped sapphire within a cushion-shaped diamond surround, diamonds approx. 2.30cts total, ring size approx. M

SAPPHIRE AND DIAMOND RING, CIRCA 1915-20 The old cushion-shaped sapphire, weighing 13.81 carats, within an engraved and pierced platinum mount with foliate detail, millegrain-set with old brilliant an

SAPPHIRE AND DIAMOND RING The cushion-shaped sapphire, weighing 1.17 carats, within a surround of old brilliant-cut diamonds, between similarly-cut diamond shoulders, ring size I Footnotes: Accompanie

A SAPPHIRE AND DIAMOND RING, BY CARTIER The central oval-shaped sapphire weighing approximately 5.00cts within eight-claw setting accented with brilliant-cut diamonds to similarly-cut diamond shoulder

A SAPPHIRE AND DIAMOND RING, Of sculptural design, the oval-shaped sapphire weighing 8.27cts in an eight-claw setting, within four brilliant-cut diamond shoulders to a bifurcated hoop, mounted in 18K

DIAMOND THREE-STONE RING Set with three cushion-shaped diamonds with similarly-cut diamond accents, within pinched collet settings, diamonds approx. 2.40cts total, ring size approx. S

SAPPHIRE AND DIAMOND CLUSTER RING The oval-cut sapphire within a surround of cushion-shaped diamonds, diamonds approx. 0.80ct total, ring size approx. P Footnotes: Accompanied by a report from GCS sta

SAPPHIRE AND DIAMOND RING The step-cut sapphire within an openwork frame set with cushion-shaped, old brilliant and single-cut diamonds, ring size approx. M½

DIAMOND AND RUBY PLAQUE RING Set with a cushion-shaped diamond within a similarly-cut diamond and circular-cut ruby surround, within pinched collet settings, the shoulders of bifurcated design, princi

THREE GEM-SET RINGS, CIRCA 1890 1st: Set with a row of graduated cushion-shaped diamonds, 2nd: The cushion-shaped sapphire within a similarly-shaped diamond surround, 3rd: Of crossover design, set wit

A sapphire and diamond band ring. The alternating brilliant-cut diamond and square-shape sapphire line, within a channel-setting, to the shaped band. Estimated total diamond weight 0.15ct. Weight 4.1g

DIAMOND CLUSTER RING, 19TH CENTURY The old brilliant-cut diamond within a surround of cushion-shaped diamonds, closed back pinched collet settings throughout, diamonds approx. 0.70ct total, ring size

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

AN ANTIQUE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, the navette shaped face set with a cushion cut blue sapphire of 1.18 carats, within a surround of old European brilliant cut di

THREE GEM-SET RINGS, LATE 19TH CENTURY - EARLY 20TH CENTURY 1st: Set with a pear-shaped ruby and sapphire, within a rose-cut diamond surround, surmounted by an old brilliant-cut and cushion-shaped dia