A Sri Lankan sapphire single-stone ring, with baguette-cut diamond sides. With report 5784-1310,

A Sri Lankan sapphire single-stone ring. The cushion-shape sapphire, weighing approximately 4cts, to the tapered band. Accompanied by report number 5775-1960, dated 11th May 2015, from the Gemmologica

A platinum sapphire and diamond three-stone ring. The rectangular-shape sapphire, with baguette-cut diamond sides. Total diamond weight 0.18ct, stamped to band. Hallmarks for Sheffield. Ring size N. W

A diamond single-stone ring The cut-cornered step-cut diamond, between baguette-cut diamond shoulders Accompanied by GIA report no. 76023832, dated 28th September 2018, stating that the emerald-cut di

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

A Ceylon sapphire single-stone ring. The oval-shape Sri Lankan sapphire, to the openwork scrolling shoulders and plain band. Accompanied by report number 5776-6508, dated 2nd of August 2016 from Gemmo

A 1970s 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, with single-cut diamond surround and baguette-cut diamond sides. Estimated total diamond weight 0.30ct. Hallmarks for Lond

An 18ct gold sapphire and diamond three-stone ring. The oval-shape sapphire, with single-cut diamond sides, to the marquise-shape shoulders. Hallmarks for Birmingham, partially indistinct. Weight 2.4g

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

A sapphire and diamond three-stone ring. The circular-shape sapphire, with triangular-shape rose-cut diamond sides, to the plain band. Accompanied by report number 5775-2611, dated the 27th July 2015,

A Burmese sapphire and diamond three-stone ring. The oval-shape Burmese sapphire, weighing 3.52cts, with circular-cut diamond sides, to the brilliant-cut diamond shoulders. Accompanied by report numbe

Burma Star Sapphire, Diamond, Platinum Ring Stones: Star sapphire cabochon; baguette and single-cut diamonds weighing a total of approximately 0.55 carat Metal: Pla

Platinum Centering an oval mixed-cut sapphire weighing 4.77 cts. with GIA report #6183571669 dated July 20, 2017 stating natural corundum with no indications of heating and Sri Lankan origin, flanked

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, to the tapered sides and plain band. Estimated diamond weight 1ct, tinted colour, SI2-P1 clarity. Hallmarks for Sheffield. Weight 3.6

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, to the tapered sides. Estimated diamond weight 0.50ct, tinted colour, SI clarity. Hallmarks for Birmingham. Ring size M1/2. Weight 5g

A mid 20th century 18ct gold diamond single-stone ring. The brilliant-cut diamond, with rose-cut diamond sides. Estimated brilliant-cut diamond weight 0.50ct, I-J colour, P1 clarity. Ring size R. Weig

DIAMOND SINGLE-STONE RING Set with a brilliant-cut diamond, weighing 1.99 carats, between tapered baguette-cut diamond shoulders, ring size approx. I (sizing band) For further information on this lot

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 a marquise-cut diamond, each shoulder set with baguette-cut diamonds and small eight-cut diamonds, to a plain band, unmarked(Ring size: K/L)

DIAMOND SINGLE-STONE RING Set with a brilliant-cut diamond, weighing 2.16 carats, between tapered baguette-cut diamond shoulders, ring size I

HIRSCH: DIAMOND SINGLE-STONE RING The marquise-cut diamond, weighing 1.96 carats, between tapered baguette-cut diamond shoulders, mounted in 18 carat gold, maker's mark, London hallmark, ring size app

DIAMOND SINGLE-STONE RING The step-cut diamond weighing 1.48 carats, between baguette-cut diamond shoulders, ring size approx. I

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, with calibre-cut diamond line sides. Principal diamond estimated weight 0.75ct, K-L colour, SI clarity. Hallmarks for Sheffield. Ring

A diamond single-stone ring. The brilliant-cut diamond, with square-shape diamond line sides, to the angular shoulders. Principal diamond estimated weight 0.25ct, H-I colour, VS clarity. Ring size M.

A diamond single-stone ring. The brilliant-cut diamond, with similarly-cut diamond line sides, to the plain band. Principal diamond weight 0.22ct, stamped to band, estimated L-tinted colour, VS clarit