A DIAMOND SINGLE-STONE RING The emerald-cut diamond weighing 3.01cts within a four-claw setting and

A DIAMOND SINGLE-STONE RING The brilliant-cut diamond weighing 0.75ct within a four-claw setting to a plain gold hoop, mounted in 18K gold, ring size L Please note that the diamond is laser inscribed

AN IMPORTANT DIAMOND SINGLE-STONE RING The old European-cut diamond weighing 6.94cts within a four-claw setting, to a plain hoop, ring size O Accompanied by a report from the GIA laboratory in America

A DIAMOND SINGLE-STONE RING, BY BULGARI The central brilliant-cut diamond weighing 0.79ct within a four-claw setting, to a gallery pavé-set with similarly-cut diamonds, mounted in platinum, signe

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, within a raised four-claw setting, to the plain band. Diamond weight1.01ct, stamped to band, estimated J-K colour, P2 clarity. Hallma

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 5.36 carats, within a six-claw setting, ring size M Footnotes: Accompanied by a report from GIA stating that the diamond is F colour, SI2

A diamond single stone ring, the brilliant cut diamond, weighing 2.14 carats, in a four claw setting, finger size P 1/2

SINGLE STONE DIAMOND RING The Asscher-cut diamond, weighing 4.59cts, in a four-claw setting, ring size S

A DIAMOND SINGLE-STONE RING, centring a brilliant-cut diamond weighing approximately 0.45ct within a six-claw setting, to pear-shaped diamond shoulders, mounted in 18K gold, remaining diamonds approxi

A SINGLE STONE DIAMOND RINGThe step cut diamond with canted corners weighing 3.11 carats, in a four claw setting, set above two baguette cut diamond set shoulders, the shank stamped 18ctSize/dimension

A SINGLE STONE DIAMOND RING LONDON 1982The step cut diamond with canted corners weighing 5.99 carats, in four claw settings, AJR Studio Ltd maker's mark and later signed BoucheronSize/dimensions: fing

A gentleman's Edwardian 18ct gold diamond single-stone ring. The old-cut diamond, within an elongated claw setting to the plain band. Estimated diamond weight 0.50ct, I-J colour, P2 clarity. Hallmarks

A diamond single-stone ring. The brilliant-cut diamond, within an elongated claw setting, to the tapered band. Estimated diamond weight 1.10ct, I-J colour, P1-P2 clarity. Ring size Q. Weight 3.6gms.

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 4.67cts, in a six-claw setting, size N

A diamond single stone ring, the brilliant cut diamond, estimated to weigh 1.00 carat, in four claw setting, stamped 950, finger size K 1/2

A 1.60ct diamond single stone ring, the round brilliant cut diamond, estimated weight 1.65cts in a four claw raised setting with plain tapered shank size M, in white on yellow metal stamped '18ct, Pla

A LATE VICTORIAN SINGLE STONE DIAMOND RING CIRCA 1900The cushion cut diamond weighing 3.71 carats in a claw setting, to a reeded shank Size/dimensions: finger size I 1/2Gross weight: 4.1 grams

A DIAMOND THREE-STONE RING Composed of three brilliant-cut diamonds within claw-setting, weighing approximately 3.00cts total, mounted in 18K gold, ring size N½

A YELLOW SAPPHIRE AND DIAMOND RING The cut-cornered rectangular sapphire weighing 6.01cts within a four-claw setting and between tapered baguette-cut diamonds, mounted in 18K gold, diamonds approximat

A single stone diamond ring, the round brilliant cut diamond, estimated weight 0.80ct, in a four claw Tiffany style setting, to plain shoulders and shank, size P, unhallmarked yellow metal tests to at

AN EMERALD AND DIAMOND CLUSTER RING, the rectangular-cut emerald within a four-claw setting with a brilliant-cut diamond frame, mounted in 18K gold, diamonds approximately 0.80ct total, ring size N

AN EMERALD AND DIAMOND CLUSTER RING The rectangular cut-cornered emerald within a four-claw setting to a brilliant-cut diamond frame with two baguette-cut diamond accents, mounted in 18K gold, diamond

A RUBY AND DIAMOND RING The oval-shaped ruby weighing approximately 2.00cts, within a double four-claw setting, between two brilliant-cut diamond shoulders, mounted in 18K gold, diamonds approximately

AN EMERALD AND DIAMOND CLUSTER RING The step cut emerald with canted corners in a four claw setting, within a surround of brilliant cut diamonds, approximately 1.20 carats total, the shank stamped 18c

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