Watches & jewellery

EMERALD AND DIAMOND RING Set with an oval-cut emerald, and marquise and brilliant-cut diamonds, with leaf motifs to each shoulder, and snakes bene...

ART DECO DIAMOND DOUBLE-CLIP BROOCH, CIRCA 1925 Of geometric design, set with old brilliant, single and baguette-cut diamonds, diamonds approx. 2...

YELLOW SAPPHIRE AND DIAMOND PENDANT, CIRCA 1920 The octagonal-cut yellow sapphire, suspended from a surmount set with old brilliant-cut diamonds,...

DIAMOND AND ENAMEL LEAF BROOCH Set with brilliant and single-cut diamonds, decorated with green and blue enamel, diamonds approx. 2.10cts total, ...

BELLE EPOQUE EMERALD AND DIAMOND BROOCH, CIRCA 1915 The circular plaque, designed as rows of rose-cut diamonds and decorated with emerald flowers,...

CITRINE, SAPPHIRE AND DIAMOND PANSY PENDANT NECKLACE, CIRCA 1900 The carved citrine petals framed by calibré-cut sapphires, with a cushion-shaped ...

SAPPHIRE AND DIAMOND RING The cushion-shaped sapphire between calibré-cut sapphires and brilliant-cut diamond shoulders, principal sapphire appro...

A Modern TJC 925 Polki Diamond Single Stone Ring, (finger size P); together with a polki diamond flowerhead cluster ring (one missing) stamped "9...

SAPPHIRE AND DIAMOND BROOCH Oval and calibré-cut sapphires, old brilliant-cut diamonds, length 7.0cm For further information on this lot please ...

SAPPHIRE AND DIAMOND PENDENT EARRINGS Each suspending a cushion-shaped sapphire via a row of old brilliant-cut diamonds, sapphires approx. 4.70ct...

RUBY AND DIAMOND EARRINGS Cabochon rubies accented by brilliant-cut diamonds, length 2.5cm For further information on this lot please visit Bonh...

MARIO BUCCELLATI: DIAMOND RING Of openwork domed form, with lace detail, set with brilliant-cut diamonds, the gallery and shoulders of 'Rigato' en...

RUBY AND DIAMOND CRESCENT BROOCH, CIRCA 1890 Circular, cushion and oval-shaped rubies, single and rose-cut diamonds, mounted in silver and gold, ...

TIFFANY: DIAMOND SINGLE-STONE RING AND WEDDING BAND Set with a brilliant-cut diamond, weighing 1.46 carats, with a matching band, both signed Ti...

SAPPHIRE AND DIAMOND NECKLACE/BRACELET COMBINATION, CIRCA 1900 Designed as a series of openwork plaques of foliate design, set with circular-cut s...

DIAMOND-SET BRACELET WITH RUBY AND DIAMOND CLIP Of brick-linking, the clasp set with old brilliant-cut diamonds, with detachable clip, decorated w...

RUBY AND DIAMOND BROOCH, CIRCA 1880 Of openwork design, set with oval-cut rubies and old brilliant-cut diamonds, mounted in silver and gold, diam...

TUFENKJIAN: RUBY AND DIAMOND PENDENT EARCLIPS Each cascading foliate spray set with marquise-cut rubies, accented by brilliant and marquise-cut di...

DIAMOND RING The old brilliant-cut diamond weighing 2.07 carats, mounted in 18 carat gold, UK hallmark, ring size approx. R For further informa...

SAPPHIRE AND DIAMOND RING The circular-cut sapphire between two baguette-cut diamonds, sapphire approx. 5.70cts, ring size approx. L For further...

COLOURED DIAMOND EARSTUDS Each radiant-cut diamond of yellow tint, weighing 1.65 and 1.74 carats, within a brilliant-cut diamond halo surround, mo...

BOODLES: DIAMOND-SET 'ROULETTE' PENDANT NECKLACE Designed as concentric circles, set with brilliant-cut diamonds, mounted in 18 carat gold, princ...

RUBY AND DIAMOND EARRINGS Bicoloured, of foliate design, set with oval-cut rubies and cushion-shaped diamonds, length 2.0cm For further informa...

COIN AND DIAMOND-SET NECKLACE AND EARRING SUITE The curb-link chain suspending an ancient coin with brilliant-cut diamond accents, the earrings of...

TUFENKJIAN: DIAMOND HOOP EARCLIPS Bicoloured, pavé-set with brilliant-cut diamonds and raised similarly-set spots, signed Tufenkjian, diamonds v...

DIAMOND AND ENAMEL MEMORIAL RING, CIRCA 1880 The cushion-shaped diamond, between shoulders decorated with black enamel, the inner hoop engraved I...

DIAMOND EARSTUDS Each set with a brilliant-cut diamond, mounted in 18 carat white gold, diamonds 1.19cts total, UK hallmark, European convention ...

EMERALD AND DIAMOND CLUSTER RING The oblong cushion-shaped emerald, within a cushion-shaped diamond surround and closed-back settings, one diamon...

DIAMOND SINGLE-STONE RING The brilliant-cut diamond, between baguette-cut diamond shoulders, diamond approx. 2.30cts, ring size approx. N For f...

AMETHYST, RUBY AND DIAMOND RING The buff-top amethyst within a step-cut ruby and a brilliant-cut diamond surround and shoulders, ring size approx...

DIAMOND AND SAPPHIRE BROOCH The openwork plaque brooch set with old brilliant and brilliant-cut diamonds and square-cut sapphires, principal dia...

ASPREY: DIAMOND-SET NECKLACE Each link set with four brilliant-cut diamonds, mounted in 18 carat white gold, diamonds approx. 5.80cts total, make...

GEM-SET NECKLACE AND EARRINGS, 18TH - 19TH CENTURY Oval-cut citrine, yellow paste and circular-cut rubies in foiled, closed-back settings, with si...

DIAMOND CLUSTER NECKLACE AND EARRING SUITE Set with brilliant-cut diamonds, diamonds approx. 7.35cts total, lengths: necklace 36.5cm, earrings 4....

DIAMOND AND PEARL DOUBLE-CLIP BROOCH, LATE 19TH CENTURY Designed as an oak leaf, set with cushion and rose-cut diamonds, the three baroque pearl...

ANDRE MARCHA: CULTURED PEARL AND DIAMOND PENDANT NECKLACE The large baroque cultured pearl in a brilliant-cut diamond wraparound setting, on a fan...

RUBY AND DIAMOND RING The oval-cut ruby between oval-cut diamonds, ruby approx. 1.00ct, diamonds approx. 0.80ct total, ring size approx. N For ...

BUCCELLATI: RUBY AND DIAMOND BROOCH Of foliate design, set with carved ruby leaves and rose-cut diamonds, signed Buccellati, length 6.1cm For f...

FANCY YELLOW DIAMOND AND DIAMOND CLUSTER RING The oval-cut Fancy Intense Yellow diamond, weighing 0.82 carat, within a brilliant-cut diamond surro...

DIAMOND THREE-STONE RING Set with brilliant-cut diamonds, mounted in 18 carat gold, diamonds approx. 2.05cts total, London hallmark, ring size ...

DIAMOND-SET NECKLACE Of baton linking, spectacle-set at intervals with fourteen old brilliant-cut diamonds, diamonds approx. 11.00cts total, len...

TURQUOISE SERPENT NECKLACE, CIRCA 1845 The snake-link chain set with turquoise cabochons, the head studded with turquoise, and ruby and rose-cut d...

A Victorian Diamond Set Oval Locket Back Brooch, (lacking glazed verso); together with an antique bar brooch (lacking pin) and a cross pendant st...

BUCCELLATI: DIAMOND-SET PENDENT EARRINGS, CIRCA 1965 Each bicoloured textured leaf suspending a detachable drop of overlapping leaves, accented by...

DIAMOND CLUSTER RING Brilliant-cut diamonds, diamonds approx. 4.70cts total, ring size approx. Q½ For further information on this lot please vis...

THEO FENNELL: BLACK DIAMOND AND DIAMOND SKULL PENDANT NECKLACE Designed as a skull and snake, set with treated black diamonds and brilliant-cut di...

DIAMOND LINE BRACELET Designed as alternating brilliant and baguette-cut diamonds, diamonds approx. 9.00cts total, length 18.2cm For further in...

DIAMOND DOUBLE CLIP BROOCH, CIRCA 1950 Old brilliant and baguette-cut diamonds, diamonds approx. 9.50cts total, length 5.6cm For further informa...

PINK SAPPHIRE AND DIAMOND RING The octagonal-cut pink sapphire, between brilliant-cut diamond shoulders, sapphire approx. 2.20cts, ring size app...

An Antique Dainty Diamond Set Flowerhead Cluster Ring, illusion set with single cut stones (damage); A Three Stone Diamond Ring, illusion set. ...

An Antique Diamond Set Ring, set throughout with old cut stones (finger size Q).

A Chester Hallmarked 18ct Gold Five Stone Diamond Ring, graduated set (Chester 1905) (finger size M) (1.7grams).

A Pair of Modern 9ct White Gold Diamond Set Earrings, illusion set.

A Modern Diamond Set Pendant, stamped "925", on a chain; together with a dress ring and modern pendants.

DIAMOND RING A brilliant-cut diamond, diamond very approx. 2.50cts, ring size approx. R For further information on this lot please visit Bonhams...

An 18ct Gold Emerald and Diamond Set Dress Ring, rectangular claw set to the centre, between claw set openwork shoulders (finger size R).

An 18ct Gold Diamond Set Three Stone Ring, graduated collet set (finger size O); together with a blue zircon set square cluster dress ring. (2)

A Diamond Set Three Stone Ring, claw set, stamped "18ct&Plat" (finger size L); A 9ct Gold Cluster Dress Ring, oval claw set. (2)

DIAMOND EARSTUDS Each brilliant-cut diamond weighing 1.72 carats and 1.77 carats For further information on this lot please visit Bonhams.com

RARE ANTIQUE DIAMOND MALTESE CROSS PENDANT/BROOCH, in high carat gold and silver. Diamonds totalling approx. 8 ct. Central diamond of approx. 1.2...