DIAMOND AND TREATED DIAMOND COLLAR NECKLACE

Description

DIAMOND AND TREATED DIAMOND COLLAR NECKLACE Brilliant-cut diamond approx. 2.55cts (laser drilling present) Baguette, princess and brilliant-cut diamonds approx. 7.50cts total Inner circumference approx. 36.0cm Weight approx. 110.0g Footnotes: OVERALL CONDITION Light surface wear to unhallmarked metal with Italian assay mark, 750, small area of discolouration. DIAMONDS Principal stone with laser drilling treatment, colour not possible due to setting. Remaining diamonds bright and lively. This condition report is provided for your convenience based on the opinion of our gemmologists. Bonhams is not responsible for any discrepancies between this information and other opinions. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing

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DIAMOND AND TREATED DIAMOND COLLAR NECKLACE

Lot 1066

Estimate £6,000-£8,000

Mar 17, 2026, 9:05 AM EDT

Current Price (3 bids)

Secure

£7,500

Online Jewellery, London

Mar 09, 2026 8:00 AM EDT

London, UNITED KINGDOM, United Kingdom

DIAMOND-SET NECKLACE: DIAMOND-SET NECKLACE Princess and brilliant-cut diamonds approx. 1.20cts total Inner circumference very approx. 33.0cm Weight approx. 18.0g Footnotes: OVERALL CONDITION Light surface wear to unhallmar

DIAMOND-SET NECKLACE

SEED PEARL AND DIAMOND NECKLACE: SEED PEARL AND DIAMOND NECKLACE Old brilliant-cut diamonds approx. 1.00ct total Rose-cut diamonds Glazed compartment containing hairwork to reverse Inner circumference approx. 38.0cm Weight approx. 37

SEED PEARL AND DIAMOND NECKLACE

DIAMOND CLUSTER RING AND EARRINGS,: DIAMOND CLUSTER RING AND EARRINGS, Brilliant-cut diamonds approx. 1.75cts total Ring size approx. Q Earring cluster length approx. 0.8cm Weight approx. 7.5g Footnotes: OVERALL CONDITION Light surface

DIAMOND CLUSTER RING AND EARRINGS,

DIAMOND CLUSTER RING: DIAMOND CLUSTER RING Brilliant-cut diamonds approx. 3.40cts total Ring size approx. V½ Weight approx. 8.0g Footnotes: OVERALL CONDITION Light surface wear to unhallmarked metal stamped to inner

DIAMOND CLUSTER RING

DIAMOND LINE BRACELET, 2020: DIAMOND LINE BRACELET, 2020 Brilliant-cut diamonds approx. 5.60cts total 18 carat gold London hallmark Length 18.0cm Weight approx. 12.0g Footnotes: OVERALL CONDITION Light surface wear to 18 carat

DIAMOND LINE BRACELET, 2020

TIFFANY: DIAMOND EARSTUDS, 2008: TIFFANY: DIAMOND EARSTUDS, 2008 Princess-cut diamonds 1.40 carats total Platinum Signed T & Co., maker's mark T&Co, numbered 24591735, London hallmark Length 6.0cm Weight approx.

TIFFANY: DIAMOND EARSTUDS, 2008

£1,400(9 bids)

SAPPHIRE AND DIAMOND RING: SAPPHIRE AND DIAMOND RING Cushion-shaped sapphire 3.54 carats Brilliant-cut diamonds approx. 0.60ct total Ring size approx. N Weight approx. 5.5g Footnotes: OVERALL CONDITION Light surface wear to

SAPPHIRE AND DIAMOND RING

TANZANITE AND DIAMOND PENDANT/NECKLACE: TANZANITE AND DIAMOND PENDANT/NECKLACE Pear-shaped tanzanite Brilliant-cut diamonds approx. 2.45cts total 18 carat gold UK hallmarks, European convention marks Pendant length 3.0cm, chain length

TANZANITE AND DIAMOND PENDANT/NECKLACE

SAPPHIRE AND DIAMOND CLUSTER RING: SAPPHIRE AND DIAMOND CLUSTER RING Oval-cut sapphire Brilliant-cut diamonds approx. 0.95ct total Ring size approx. N Weight approx. 4.0g Footnotes: OVERALL CONDITION Light surface wear to unhallmarked

SAPPHIRE AND DIAMOND CLUSTER RING

SAPPHIRE AND DIAMOND PENDENT EARRINGS,: SAPPHIRE AND DIAMOND PENDENT EARRINGS, Oval-cut sapphires Brilliant-cut diamonds approx. 0.70ct total Length 3.0cm Weight approx. 5.0g Footnotes: OVERALL CONDITION Negligible surface wear to

SAPPHIRE AND DIAMOND PENDENT EARRINGS,

MULTI-GEM AND DIAMOND SET BRACELET: MULTI-GEM AND DIAMOND SET BRACELET Oval-cut sapphires, emeralds and rubies Brilliant-cut diamonds approx. 0.50ct total Length 18.5cm Weight approx. 13.0g Footnotes: OVERALL CONDITION Light surface

MULTI-GEM AND DIAMOND SET BRACELET

SAPPHIRE AND DIAMOND RING: SAPPHIRE AND DIAMOND RING Baguette-cut sapphires Brilliant-cut diamonds, approx. 0.65ct total Ring size approx. U½ Weight approx. 17.0g Footnotes: OVERALL CONDITION Surface wear to unhallmarked

SAPPHIRE AND DIAMOND RING

TOURMALINE AND DIAMOND DRESS RING: TOURMALINE AND DIAMOND DRESS RING Octagonal step-cut tourmaline Brilliant-cut diamonds approx. 0.80ct total Ring size approx. W (leading edge) Weight approx. 18.0g Footnotes: OVERALL CONDITION Light

TOURMALINE AND DIAMOND DRESS RING

MULTI GEM-SET NECKLACE: MULTI GEM-SET NECKLACE Oval-cut gemstones Length 81.0cm Weight approx. 12.0g Footnotes: OVERALL CONDITION Light surface wear to unhallmarked metal stamped 585 and testing as 12kt gold.

MULTI GEM-SET NECKLACE

EMERALD, DIAMOND AND SAPPHIRE TURTLE BROOCH: EMERALD, DIAMOND AND SAPPHIRE TURTLE BROOCH Circular-cut emeralds Circular-cut sapphires Single-cut diamonds Length 2.6cm Weight approx. 5.5g Footnotes: OVERALL CONDITION Light surface wear to

EMERALD, DIAMOND AND SAPPHIRE TURTLE BROOCH

BEN ROSENFELD: DOG BROOCH, 1988: BEN ROSENFELD: DOG BROOCH, 1988 Circular-cut ruby Single-cut diamonds 18 carat gold Signed BRLD, London hallmark Length 4.3cm Weight approx. 18.5g Footnotes: OVERALL CONDITION Light surface wear,

BEN ROSENFELD: DOG BROOCH, 1988

£1,400(2 bids)

KUTCHINKSY: RUBY AND DIAMOND RIBBON BROOCH, CIRCA 1960: KUTCHINKSY: RUBY AND DIAMOND RIBBON BROOCH, CIRCA 1960 Circular-cut rubies Brilliant-cut diamonds approx. 0.80ct total Signed Kutchinsky Length 5.7cm Weight approx. 20.5g Footnotes: Jewellery from a

KUTCHINKSY: RUBY AND DIAMOND RIBBON BROOCH, CIRCA 1960

£2,200(6 bids)

STUART DEVLIN: 'PEOPLE' RHODOCHROSITE AND CULTURED PEARL NECKLACE, 1978: STUART DEVLIN: 'PEOPLE' RHODOCHROSITE AND CULTURED PEARL NECKLACE, 1978 Rhodochrosite beads Cultured pearls 18 carat gold Maker's mark SD, London hallmark Length 81.5cm Weight approx.

STUART DEVLIN: 'PEOPLE' RHODOCHROSITE AND CULTURED PEARL NECKLACE, 1978

BAROQUE PEARL LONGCHAIN, LATE 19TH CENTURY: BAROQUE PEARL LONGCHAIN, LATE 19TH CENTURY Baroque pearls Length 140.0cm Weight approx. 66.5g Footnotes: OVERALL CONDITION Light surface wear to unhallmarked metal chain, stamped to clasp 15, testing

BAROQUE PEARL LONGCHAIN, LATE 19TH CENTURY

MULTI-STRAND NECKLACE: MULTI-STRAND NECKLACE Of brushed design Length of shortest strand 47.0cm Weight approx. 83.5g Footnotes: OVERALL CONDITION Light surface wear, with some light kinks to structure, of unhallmarked

MULTI-STRAND NECKLACE

£6,000(2 bids)

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