JOHN DONALD: DIAMOND SINGLE-STONE RING,

JOHN DONALD: DIAMOND SINGLE-STONE RING, 2003 Set with a brilliant-cut diamond, mounted in platinum, diamond approx. 1.00ct, maker's mark JAD, London hallmark, ring size approx. M Footnotes: From a Pri

JOHN DONALD: DIAMOND SINGLE-STONE RING AND DIAMOND-SET DRESS RING, 1990-2002 1st: Set with a pear-shaped diamond, between openwork abstract shoulders, mounted in 18 carat gold, 2nd: Of openwork bomb&#

DIAMOND SINGLE-STONE RING Set with a brilliant-cut diamond, diamond approx. 1.25cts, ring size approx. O, cased by John Bull & Co., Bedford

A LOVELY SINGLE STONE DIAMOND RING, 1.65CTS, set in platinum.

18k white gold Centers one old European-cut diamond gauged at 4.74mm x 4.72mm x 2.68mm weighing approximately 0.38ct. and graded J-K color and SI clarity finished with filigree and engraved shoulders

AN 18CT WHITE GOLD AND DIAMOND RING with a central single stone flanked by small diamond clusters and two rows of diamonds

DIAMOND SINGLE-STONE RING The step-cut diamond, weighing 6.30 carats, ring size J Footnotes: Accompanied by a report from GIA stating that the diamond is G colour, SI1 clarity. Report number 22255108

DIAMOND SINGLE-STONE RING The old brilliant-cut diamond, weighing 10.74 carats, in an 18 carat white and yellow gold setting, London hallmark, ring size P

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

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 5.73 carats, in a brushed mount, ring size M Footnotes: Accompanied by a report from GIA stating that the diamond is I colour, SI1 clarity

DIAMOND SINGLE-STONE RING, CIRCA 1950 The step-cut diamond, weighing 5.64 carats, between bifurcated shoulders set with baguette and single-cut diamonds, ring size M Footnotes: Accompanied by a report

DIAMOND SINGLE-STONE RING, MID 20TH CENTURY The fancy octagonal-cut diamond, weighing 8.25 carats, in a raised setting, the shoulders and quatrefoil gallery set with old brilliant and single-cut diamo

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 3.94 carats, between scrolling shoulders set with baguette-cut diamonds, ring size Q Footnotes: Accompanied by a report from HRD stating t

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

DIAMOND SINGLE-STONE RING, 1884 The cushion-shaped diamond, mounted in 18 carat gold, diamond approx. 4.90cts, UK hallmark, ring size approx. P (leading edge) For further information on this lot pleas

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 6.02 carats, ring size O½

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 4.11 carats, ring size M Footnotes: Accompanied by a report from GIA stating that the diamond is K colour, SI1 clarity. Report number 2191

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

A diamond single-stone ring. The rectangular-shape diamond, weighing 4.73cts, to the tapered shoulders and plain band. Accompanied by report number 20022002, dated 11th February 2015, from AnchorCert,

DIAMOND SINGLE-STONE RING Set with a step-cut diamond, weighing 7.01 carats, between brilliant-cut diamond shoulders, ring size approx. G (sizing spring)

An early 20th century diamond single-stone ring The old brilliant-cut diamond, weighing 4.03 carats, between tapered single-cut diamond three-stone shoulders, French assay marks(Ring size: N)

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 4.93 carats, ring size P This lot is subject to the following lot symbols: Ω Ω VAT on imported items at the prevailing rate on

DIAMOND SINGLE-STONE RING Set with a brilliant-cut diamond, weighing 3.76cts, ring size approx. P, cased by F.J. Cornfield Ltd., 8 North End Road, Golders Green, also at The Broadway, Mill Hill

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, weighing 2.20 carats, between princess-cut diamond shoulders, ring size approx. O Footnotes: Accompanied by a report from The Gem Testing Laborato