DIAMOND SINGLE-STONE RING

Description

DIAMOND SINGLE-STONE RING
The brilliant-cut diamond, weighing 5.37 carats, French assay mark, ring size Q
Footnotes:
Accompanied by a report from IGI stating that the diamond is L colour, VS1 clarity. Report number 58411, dated 17th December 2024.
For further information on this lot please visit Bonhams.com

Condition

Overall in good condition. Outer band with French assay mark (dog's head indicating platinum) and a very rubbed French maker's mark. Gross weight approximately 8.0 grams.

Buyer's Premium

32%

DIAMOND SINGLE-STONE RING

Lot 0063

Estimate £20,000-£30,000Jun 11, 2026, 6:00 AM EDT

Starting Price

Secure

£20,000

Good Bid

Strong Bid

Competitive Bid

Or select a higher max bid amount

Get approved to bid.

Exceptional Jewels, London

Jun 11, 2026 6:00 AM EDT

London, GB, UK

SAPPHIRE AND DIAMOND RING: SAPPHIRE AND DIAMOND RING The cushion-shaped sapphire weighing 7.76 carats, between step-cut diamonds, ring size I Footnotes: Accompanied by a report from GRS stating that the sapphire is of Sri

Jun 11, 2026SAPPHIRE AND DIAMOND RING

EMERALD AND DIAMOND BRACELET: EMERALD AND DIAMOND BRACELET Composed of intertwined ribbons of brilliant, marquise and step-cut diamonds, accented by octagonal step-cut emeralds within marquise-cut diamond surrounds, emeralds

Jun 11, 2026EMERALD AND DIAMOND BRACELET

EMERALD AND DIAMOND RING: EMERALD AND DIAMOND RING The octagonal step-cut emerald, weighing approximately 13.60 carats, within an undulating surround of brilliant-cut diamonds, between bifurcated shoulders, diamonds

Jun 11, 2026EMERALD AND DIAMOND RING

DIAMOND SINGLE-STONE RING: DIAMOND SINGLE-STONE RING The step-cut diamond, weighing 3.22 carats, between graduating marquise-cut diamond shoulders, ring size N Footnotes: Accompanied by a report from GIA stating that the

Jun 11, 2026DIAMOND SINGLE-STONE RING

SPINEL AND DIAMOND BROOCH/PENDANT: SPINEL AND DIAMOND BROOCH/PENDANT The circular-cut spinel, weighing 6.37 carats, within a radiating knifewire surround, issuing brilliant-cut diamonds, diamonds approximately 3.00 carats total,

Jun 11, 2026SPINEL AND DIAMOND BROOCH/PENDANT

DIAMOND SINGLE-STONE RING, MOUNTED BY BOUCHERON: DIAMOND SINGLE-STONE RING, MOUNTED BY BOUCHERON The old brilliant-cut diamond weighing 7.19 carats, mounted in platinum, signed Boucheron, maker's mark, French assay mark, ring size N Footnotes: Pleas

Jun 11, 2026DIAMOND SINGLE-STONE RING, MOUNTED BY BOUCHERON

BULGARI: DIAMOND 'SERPENTI VIPER' EARRINGS: BULGARI: DIAMOND 'SERPENTI VIPER' EARRINGS Each designed as a serpent, the articulated tail pavé-set with brilliant-cut diamonds, mounted in 18 carat white gold, signed Bulgari, numbered C41M3Y

Jun 11, 2026BULGARI: DIAMOND 'SERPENTI VIPER' EARRINGS

BULGARI: DIAMOND 'SERPENTI VIPER' RING: BULGARI: DIAMOND 'SERPENTI VIPER' RING The coiled serpent set throughout with brilliant-cut diamonds, mounted in 18 carat white gold, signed Bulgari, numbered TNXV1N, maker's mark SB, UK hallmark,

Jun 11, 2026BULGARI: DIAMOND 'SERPENTI VIPER' RING

BULGARI: DIAMOND 'SERPENTI VIPER' BANGLE: BULGARI: DIAMOND 'SERPENTI VIPER' BANGLE Designed as a serpent set throughout with brilliant-cut diamonds, mounted in 18 carat white gold, signed Bulgari, maker's mark SB, UK hallmark, convention

Jun 11, 2026BULGARI: DIAMOND 'SERPENTI VIPER' BANGLE

BOODLES: ASHOKA-CUT DIAMOND ETERNITY RING: BOODLES: ASHOKA-CUT DIAMOND ETERNITY RING Set throughout with ten Ashoka-cut diamonds weighing 7.34 carats total, unsigned, ring size M, maker's case Footnotes: Accompanied by a redacted copy of

Jun 11, 2026BOODLES: ASHOKA-CUT DIAMOND ETERNITY RING

FANCY COLOURED DIAMOND RING: FANCY COLOURED DIAMOND RING The Fancy Pink pentagonal brilliant-cut diamond, weighing 1.01 carats, within a step-cut diamond surround, to similarly set step-cut diamond shoulders, remaining diamonds

Jun 11, 2026FANCY COLOURED DIAMOND RING

DIAMOND-SET NECKLACE: DIAMOND-SET NECKLACE The articulated asymmetrical necklace, channel-set to the front with rows of princess-cut diamonds, diamonds approximately 46.00 carats total, length approximately 39.0cm For

Jun 11, 2026DIAMOND-SET NECKLACE

BOODLES: SAPPHIRE AND DIAMOND RING: BOODLES: SAPPHIRE AND DIAMOND RING The oval-cut sapphire, weighing 8.33 carats, within a fine brilliant-cut pavé-set surround, band and gallery similarly set, signed Boodles, ring size H½

Jun 11, 2026BOODLES: SAPPHIRE AND DIAMOND RING

BOODLES: DIAMOND SINGLE-STONE RING, 2011: BOODLES: DIAMOND SINGLE-STONE RING, 2011 The Asscher-cut diamond weighing 5.00 carats, in a pavé-set brilliant-cut diamond setting, mounted in platinum, signed Boodles, maker's mark B&D, London

Jun 11, 2026BOODLES: DIAMOND SINGLE-STONE RING, 2011

BOODLES: DIAMOND 'ANGELS GARLAND' NECKLACE, 2009: BOODLES: DIAMOND 'ANGELS GARLAND' NECKLACE, 2009 The brilliant-cut diamond stems issuing marquise-cut diamond 'buds' of varying sizes, the largest marquise-cut diamond drop weighing 3.06 carats,

Jun 11, 2026BOODLES: DIAMOND 'ANGELS GARLAND' NECKLACE, 2009

DIAMOND EARSTUDS: DIAMOND EARSTUDS Each Asscher-cut diamond, weighing 3.02 carats Footnotes: Accompanied by a copy of the GIA report check stating that the diamond weighing 3.02 carats is I colour, VS1 clarity. Report

Jun 11, 2026DIAMOND EARSTUDS

VAN CLEEF & ARPELS: DIAMOND AND COLOURED DIAMOND BOMBÉ RING, CIRCA 1980: VAN CLEEF & ARPELS: DIAMOND AND COLOURED DIAMOND BOMBÉ RING, CIRCA 1980 The brilliant-cut diamonds intertwined with bands of circular-cut diamonds of yellow tint, signed VCA NY, numbered 54075,

Jun 11, 2026VAN CLEEF & ARPELS: DIAMOND AND COLOURED DIAMOND BOMBÉ RING, CIRCA 1980

STAR SAPPHIRE AND DIAMOND PENDANT/BROOCH: STAR SAPPHIRE AND DIAMOND PENDANT/BROOCH The star sapphire cabochon, within a surround of old brilliant-cut diamonds, each cardinal point set with a brilliant or triangular-cut diamond, sapphire

Jun 11, 2026STAR SAPPHIRE AND DIAMOND PENDANT/BROOCH

TREATED COLOURED DIAMOND RING: TREATED COLOURED DIAMOND RING The step-cut treated yellow diamond weighing 12.15 carats, mounted in silver and gold, ring size N Footnotes: Property from a Private Collection Accompanied by a report

Jun 11, 2026TREATED COLOURED DIAMOND RING

CARTIER: GEM-SET 'PANTHÈRE DE CARTIER' BANGLE: CARTIER: GEM-SET 'PANTHÈRE DE CARTIER' BANGLE The panther with black lacquer spots, pear-cut tsavorite garnet eyes and onyx nose, mounted in 18 carat gold, signed Cartier, numbered OKK924,

Jun 11, 2026CARTIER: GEM-SET 'PANTHÈRE DE CARTIER' BANGLE

Related Items

AN IMPRESSIVE COLORED DIAMOND AND DIAMOND RING: Details AN IMPRESSIVE COLORED DIAMOND AND DIAMOND RING Very light green-yellow old European brilliant-cut diamond of 49.91 carats, marquise and round diamonds, platinum, circa 1970 GIA, 2026, report n

Jun 10, 2026AN IMPRESSIVE COLORED DIAMOND AND DIAMOND RING

12.52ct I2-JK NATURAL ROUND DIAMOND RING: Natural round brilliant cut diamond weighing 12.52ct (by scale) of I2-JK quality, Good cut, Very Good symmetry, Excellent/Very Good polish, faint fluorescence, measuring 14.94-15.00 x9.16mm. Set into

4 days Left12.52ct I2-JK NATURAL ROUND DIAMOND RING

A DIAMOND RING: A DIAMOND RING Centering a cushion-cut diamond, weighing 4.01 carats, flanked by two trapezoid-shaped diamonds; mounted in platinum; size 4¾ Footnotes: Accompanied by GIA report stating that the

Jun 08, 2026A DIAMOND RING

DIAMOND SINGLE-STONE RING, MOUNTED BY BOUCHERON: DIAMOND SINGLE-STONE RING, MOUNTED BY BOUCHERON The old brilliant-cut diamond weighing 7.19 carats, mounted in platinum, signed Boucheron, maker's mark, French assay mark, ring size N Footnotes: Pleas

Jun 11, 2026DIAMOND SINGLE-STONE RING, MOUNTED BY BOUCHERON

Platinum Engagement Ring With 6.13ct J SI1 GIA Round Diamond and Baguettes: Platinum Engagement Ring With 6.13ct J SI1 GIA Round Diamond and Baguettes This platinum engagement ring features a 6.13 carat round brilliant cut diamond with J color and SI1 clarity, certified by GI

3 days LeftPlatinum Engagement Ring With 6.13ct J SI1 GIA Round Diamond and Baguettes

1.84 CARAT CIRCULAR BRILLIANT CUT K VS1 DIAMOND PLATINUM ENGAGEMENT RING: 1.84 CARAT CIRCULAR BRILLIANT CUT K VS1 DIAMOND PLATINUM ENGAGEMENT RING Title: This elegant vintage engagement ring showcases a stunning 1.76 carat circular brilliant cut diamond graded K color and V

Jun 14, 20261.84 CARAT CIRCULAR BRILLIANT CUT K VS1 DIAMOND PLATINUM ENGAGEMENT RING

18kt White Gold 12.11 ctw Diamond Engagement Ring: 18K White Gold Three-Stone CVD Lab-Grown Diamond Ring · Oval Center · 12.11 ctw Total · IGI Certified A commanding and exceptionally well-executed three-stone diamond ring; crafted in solid 18kt wh

2 days Left18kt White Gold 12.11 ctw Diamond Engagement Ring

Certified 12 Carat Oval Cut Lab Grown Diamond 14kt Solid White Gold Engagement Ring: Certified 12 Carat Oval Cut Lab Grown Diamond 14kt Solid White Gold Engagement Ring D Color VVS1 - 12 Carat Oval Cut - Side Stone is lab grwon duamonds vs1 fancy and round cut 1.10 ct - Ring Size us 7

Jun 14, 2026Certified 12 Carat Oval Cut Lab Grown Diamond 14kt Solid White Gold Engagement Ring

Certified 12 Ct. Lab Grown Diamond Engagement Ring in 14K Solid White Gold - Round Cut: Certified 12.00 Ct. Lab Grown Diamond Engagement Ring in 14K Solid White Gold - F-Color VVS1 Round Cut Excellent Luster- Ring Size US- 6.5 -)Ring Resize Available free of Cost---Free Shipping ,,

Jun 14, 2026Certified 12 Ct. Lab Grown Diamond Engagement Ring in 14K Solid White Gold - Round Cut

A diamond ring,: A diamond ring, the round brilliant cut diamond, estimated to weigh 2.20ct, claw set between stepped shoulders further set with baguette cut diamonds, in unmarked white metal stamped Plat Principal di

4 days LeftA diamond ring,

2 days LeftPT950 CUSHION CUT DIAMOND RING

Jun 14, 2026TIFFANY SOLITAIRE DIAMOND RING PT950

TOP