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Lot 1296
A diamond solitaire ring, early 20th century, set with a cushion-shaped diamond weighing approximately 0.60 carats, to fluted platinum band, size G1/2Diamond measuring approximately 5.2 x 5.0 x 3.6mm, calculated weight approximately 0.60 carats, estimated colour H/I, estimated clarity VS, med blue fluorescence. Mount attractive and in good condition, gross weight 2.1 grams.
Lot 1439
A diamond ring, early 20th century, collet-set with a pear-shaped diamond weighing approximately 0.90 carats, to an open work plaque setting set with circular-cut and cushion-shaped diamonds, within millegrain borders, mounted in platinum and white gold, size L, stamped 18CT, sponsor's mark M&M, case stamped Hamilton & Inches
Lot 1477
A sapphire and diamond cluster ring, the cushion-shaped sapphire weighing 4.27cts, claw-set within a surround of old cushion-shaped diamonds in platinum and gold, size N 1/2 Accompanied by GPL report number 20168 dated 2nd July 2021 stating that sapphire weighs 4.27cts, origin: Sri Lanka, no indications of heating
Lot 1598
An Edwardian diamond ring, early 20th century, set with a line of circular-cut diamonds in millegrain bordered collet settings, within an oval openwork plaque pavé-set with cushion-shaped and rose-cut diamonds, mounted in gold and platinum, size R1/2, inscribed 585, unidentified maker's mark, one rose-cut diamond deficient
Lot 1613
A ruby single stone ring, claw-set with a cabochon ruby weighing approximately 5.80 carats, mounted in gold collet and tapered platinum shank, size H Accompanied with Gemmological report number 1109794 from AGL dated 29th September 2020 stating that the natural ruby is Burma with no indications of heating
Lot 1623
A diamond cluster ring, claw-set with a step-cut diamond weighing 3.01 carats, within a border of channel-set baguette and trapezoid diamonds, mounted in platinum, size L, British hallmarks, case stamped Longmire Accompanied by HRD report no. 11015910008, dated May 27th 2011 stating that the 3.01 carat diamond measuring 8.89 x 7.73 x 5.21mm is H colour, VS1 clarity, with slight fluorescence
Lot 1626
A sapphire and diamond cluster ring, the cushion-shaped sapphire claw-set within a surround of 16 circular-cut diamonds in platinum, size N 1/2, case Accompanied by report number 5782-2207 from GCS dated 10th February 2023 stating that the sapphire weighs 8.27cts, is a natural sapphire, Burma, no indications of heating
Lot 1628
A fine Art Deco emerald ring, circa 1920, claw-set with a large sugarloaf cabochon emerald, to a fine platinum mount with rose-cut diamond shoulders and a scrolled gallery, size M1/2Accompanied by GCS report no. 5783-72, stating that the emerald measuring approximately 15.5 x 15.4 x 10.5mm is of Colombian origin, with indications of moderate clarity enhancement.
Lot 1630
A rare sapphire and diamond ring, millegrain-set with an elongated cushion-shaped sapphire weighing 5.94 carats, to a double border and shoulders set with circular-cut diamonds, mounted in platinum, size MAccompanied by SSEF report no. 125072, stating that the sapphire is of Kashmir origin, with no indications of heat treatment, dated 6th October 2022
Lot 1632
Cartier, an Art Deco ruby and diamond ring, C1935, the emerald-cut ruby measuring 13.04 x 8.10 x 3.95mm which calculates to approximately 4.10cts, within geometric shoulders set with two elongated baguette-shaped diamonds and a further baguette-shaped diamond, the gallery pave-set with circular diamonds in platinum, signed Cartier London, size N, green Cartier leather case Accompanied by report number 22766 from GPL dated 12th February 2023 stating that the natural ruby is Burma, no evidence of heat treatment observed
Lot 064
An antique 18ct yellow gold & platinum rectangular shaped cluster ring set with a central rectangular cut pinkish red stone (possibly Rubellite (Tourmaline)?), approx. 1.43 carats, surrounded by round brilliant cut diamonds, total diamond weight approx. 0.80 carats, 4.8gm, size N, (please note all stones measured within the restrictions of their settings).
Lot 085
An impressive platinum ring set with a central 7.99 carat cushion cut natural Sri Lankan sapphire, measuring 11.26 x 9.02 x 7.10mm, set with three tapered baguette cut diamonds to each side, total diamond weight approx. 0.65 carats (measured within the restrictions of the settings), 6.80gm, size P 1/2, (please note this ring is not hallmarked or tested by us but there is a small indistinct mark on the outside of the shank), comes with a Sapphire Report from The Gem & Pearl Laboratory dated 11 January 2013, number 07024, result natural sapphire with no evidence of heat treatment observed.
Lot 133
Platinum Claw and Pave Set 3 Stone Diamond Ring, Trilogy Design. Marked 950. Top Graded Diamonds. The Centre Round Brilliant Cut Diamonds Is of Top Colour D, SI2 Clarity, Excellent Cut, Polish, Symmetry, Nil Florescence. CIA Certificate, No 3305599819. The Two Round Brilliant Cut Diamonds ( 2 ) Diamond Colour F - G, VS Clarity, Diamond Weight 0.39 pts. Round Brilliant Cut Diamonds ( 12 ) to Shoulders, F-G Colour, Diamond Weight 0.34 pts, SI Clarity. Ring Size L. Weight of Ring 5 grams. CIA - Report Certificate to be Given to Buyer. Hallmarked at the Assay Office, Edinburgh. Blair and Sheridan Valuation for Insurance for the Sum of £4095.00 pounds. Dated 15.6.19.
Lot 107
TIFFANY: CULTURED PEARL AND DIAMOND RING, 2015The 11.6mm cultured pearl within a brilliant-cut diamond surround, between similarly-cut diamond shoulders, mounted in platinum, Signed Tiffany & Co., London hallmark, ring size approx. H½ (sizing beads), maker's caseFor further information on this lot please visit Bonhams.com
Lot 395
DIAMOND SINGLE-STONE RINGThe step-cut diamond, weighing 2.17 carats, between bifurcated shoulders, mounted in platinum, maker's mark H&J, London hallmark, ring size approx. L½ Footnotes:Accompanied by a report from Gemmological Certification Services stating that the diamond is H colour, SI2 clarity. Report number 81301-25, dated 6th April 2021.For further information on this lot please visit Bonhams.com
Lot 399
DIAMOND CLUSTER RINGThe cushion-shaped diamond, weighing 2.95 carats, within a brilliant-cut diamond surround, between similarly-set shoulders, mounted in platinum, brilliant-cut diamonds approx. 0.90ct total, partial UK hallmark, European convention mark, ring size approx. MFor further information on this lot please visit Bonhams.com
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46515 item(s)/page