A diamond single stone ring; the round brilliant cut diamond in four claw mount, to a plain polished

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 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 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

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 impressive single stone diamond ring, the old round brilliant cut diamond, estimated weight 2.61cts, in a plain raised six claw setting of white precious metal, tests for 18ct white gold; ring size

A diamond single-stone ring claw-set with a round brilliant-cut diamond, to a plain band, mounted in platinum; together with a baguette and round brilliant-cut diamond half-eternity ring, mounted in p

A seven stone ruby and diamond half hoop ring, the the slightly graduated oval cut rubies in claw mounts with four stone brilliant cut diamond accents, to a plain shank; size Q 3.3 grams

A three stone half hoop fire opal and diamond ring, the oval cut opal in claw mounts with round brilliant cut diamonds to each side, on plain 9ct gold shank, together with three further gem-set rings

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, within an illusion mount, to the plain band. Estimated diamond weight 0.20ct, tinted colour, VS clarity. Hallmarks for London, 1978.

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

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 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

A single stone diamond ring, claw set round brilliant cut diamond, approximate diameter 4.8mm, estimated approximate weight 0.40ct, tapered chenier shoulders, size I½, unmarked, tested as 18ct

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

An Art Deco single stone diamond ring, the round brilliant cut diamond in illusion setting, pierced and carved shoulders and plain shank marked '18ct' and 'plat' . L1/2, 2.7 grams

A single stone diamond ring, featuring a claw set round brilliant cut diamond measuring 4.17mm in a yellow metal collet on a yellow metal band stamped '585', ring size K1/2, total weight of item 2.4g

A diamond single-stone ring claw-set with a marquise-cut diamond, each shoulder set with five round brilliant-cut diamonds, stamped 750; with accompanying HRD report, dated 27.07.05, numbered 05017020

the old round brilliant cut diamonds double claw set to a fancy coronet gallery, plain shank size P, unmarked white metal tests for platinum, total estimated weight of diamonds approximately 2.20cts

A 1940s diamond single-stone ring claw-set with a round-cut diamond, each shoulder set with a tapered baguette-cut diamond, to a plain band(Ring size: M/N)

A diamond single-stone ring claw-set with an old round-cut diamond, each shoulder set with eight-cut diamonds, to a plain band, unmarked; together with a diamond-set half-eternity ring, stamped PLAT(R

A diamond single-stone ring claw-set with an old round-cut diamond, to a plain band, stamped 18ct(Ring size: H)

A diamond five-stone ring claw-set with five round brilliant-cut diamonds, to a plain band, mounted in 18ct gold(Ring size: K)

A diamond single-stone ring claw-set with a single old round-cut diamond, to a plain band, stamped 585, with Austrian marks(Ring size: O)

Stamped 14K white gold ring set with one 3.1ct round brilliant cut opaque black diamond as center stone in four claws setting and two 0.38ct round brilliant cut diamonds as side stones in claws settin