ELSA PERETTI FOR TIFFANY: 'DIAMONDS BY THE YARD' NECKLACE, 2015Spectacle-set with brilliant-cut diamonds, mounted in platinum, diamonds 4.30cts to...

ELSA PERETTI FOR TIFFANY: TWO 'DIAMONDS AND COLOUR BY THE YARD' BRACELETS1st: Spectacle-set at intervals with brilliant-cut diamonds, 2nd: spectac...

BULGARI: 'BULGARI BULGARI' DIAMOND-SET PENDANT/NECKLACEThe circular disc pavé-set to the centre with brilliant-cut diamonds, the frame engraved BU...

RUBY AND DIAMOND-SET PENDANT/NECKLACE EARRINGSThe pendant set with a circular-cut ruby, within a brilliant-cut diamond halo beneath a similarly-cu...

DIAMOND SINGLE-STONE RINGSet with a brilliant-cut diamond, diamond approx. 0.80ct, partial UK hallmark, ring size approx. M1⁄2For further informat...

DIAMOND EARSTUDSEach set with a brilliant-cut diamond, mounted in 18 carat gold, diamonds approx. 0.80ct total, UK hallmarkFor further information...

DIAMOND-SET RING, 2001Set with a row of brilliant-cut diamonds, mounted in 18 carat gold, diamonds approx. 0.70ct total, UK hallmark, ring size ap...

TIFFANY: 'ATLAS' DIAMOND EARRINGS, 2010Each continuous series of Roman numerals set with three brilliant-cut diamonds, mounted in 18 carat gold, s...

TIFFANY: SAPPHIRE 'ATLAS' BANGLE, 1995Of hinged design, the continuous series of Roman numerals, one section between calibré-cut sapphires, signed...

DIAMOND-SET BRACELETThe curb-link bracelet with three oval spacers, between brilliant-cut diamond-set links, length 20.9cmFor further information ...

DIAMOND EARRINGSEach designed as a cluster of brilliant-cut diamonds, diamonds approx. 1.75cts total, partial UK hallmark, width 1.1cmFor further ...

PINK SAPPHIRE LINE BRACELETSet throughout with square-cut pink sapphires, length 19.0cmFor further information on this lot please visit Bonhams.co...

AQUAMARINE LINE BRACELETSet throughout with square-cut aquamarines, length 19.0cmFor further information on this lot please visit Bonhams.com ......

GEM-SET NECKLACEThe pear-shaped aquamarine suspended from the triangular-cut emerald within a brilliant-cut diamond scrolled surround, beneath a m...

EMERALD AND DIAMOND RING, 1988Set with square-cut emeralds and princess-cut diamonds, mounted in 18 carat gold, diamonds approx. 2.00cts, makers...

AMETHYST AND DIAMOND PENDANTThe step-cut amethyst within a surround of brilliant-cut diamonds, suspended from a foxtail link chain, lengths: penda...

PERIDOT RING, 2006The oval-cut peridot within a tsavorite garnet surround, mounted in 22 carat gold, London hallmark, ring size approx. LFor furth...

PINK SAPPHIRE AND DIAMOND-SET RING AND PENDANT/NECKLACE, 2014Of flowerhead design, set with pear-shaped pink sapphires, within a brilliant-cut dia...

PINK SAPPHIRE AND DIAMOND RING, 2007The oval-cut pink sapphire within a brilliant-cut diamond surround, between similarly-cut diamond shoulders, m...

ZIRCON AND DIAMOND RINGThe wide band set with a circular-cut blue zircon and princess-cut diamonds, diamonds approx. 1.10cts total, ring size appr...

TWO GEM-SET BROOCHES AND A LOCKET PENDANT, 19TH-EARLY 20TH CENTURY1st: The oval-cut orange topaz within a cushion-shaped diamond surround, within ...

OPAL AND DIAMOND CRESCENT BROOCH, LATE 19TH CENTURYSet with alternating opal cabochons and old-brilliant or rose-cut diamonds, length 3.6cmFor fur...

COLLECTION OF GEM-SET PINS, 19TH-20TH CENTURY1st: The stickpins variously set with a blue enamel horse shoe, a black and white enamel floral spher...

GOLD CHATELAINE, LATE 18TH-19TH CENTURYComprising a 9 carat gold pen-knife, 1793, a reeded pencil holder with pencil, a matchstick box and key, su...

THREE HARDSTONE SEAL FOBS, 19TH CENTURY1st: The blue lace agate seal carved to depict a woman facing right, beneath the carved banded agate bust o...

SEED PEARL AND TURQUOISE HEART LOCKET, EARLY 20TH CENTURYSet with seed pearls and an oval turquoise cabochon, opening to reveal two glazed compar...

SAULINI: SARDONYX CAMEO, MID 19TH CENTURYThe cameo carved in high relief, depicting the portrait of the Viscount of Melbourne, length 4.0cm, cased...

BANDED AGATE AND CORAL PENDANT, LATE 19TH CENTURYThe banded agate plaque, with an applied carved coral, Corallium rubrum, flower, length 5.2cmFoo...

DIAMOND AND ENAMEL FISH STICK PIN, LATE 19TH CENTURYDesigned as a trout, decorated with blue/green and orange/yellow enamel and rose-cut diamonds,...

COLLECTION OF MOURNING RINGS, EARLY 19TH CENTURY1st:1817, the black enamel band inscribed IN MEMORY OF, 2nd: 1815, the black enamel band inscrib...

NATURAL AND CULTURED PEARL NECKLACEThe two rows of 3.3-8.8mm natural and cultured pearls on an old brilliant and square-cut diamond clasp, French ...

SAPPHIRE RINGSet with five graduated square-cut sapphires, ring size approx. MFor further information on this lot please visit Bonhams.com ...[m...

DIAMOND FIVE-STONE RING, 1888Set with graduated old brilliant-cut diamonds, mounted in 18 carat gold, diamonds approx. 0.65ct total, maker's mark ...

NATURAL PEARL AND DIAMOND EARRINGSEach of flowerhead design, set with a 6.6-6.1mm or 6.3-6.7mm natural pearl within a surround of rose-cut diamond...

DIAMOND CRESCENT BROOCH, 19TH CENTURYSet with graduated cushion-shaped diamonds, diamonds approx. 0.95ct total, length 3.4cmFor further informati...

NATURAL PEARL NECKLACE, CIRCA 1925The two rows of 3.5-7.0mm pearls, on an openwork clasp set with cushion-shaped and rose-cut diamonds, diamonds a...

ENAMEL AND GARNET RING, 1833The octagonal-cut garnet in a closed back setting, within a scrolling repoussé surround, between foliate shoulders set...

DIAMOND-SET BROOCH, 19TH CENTURYThe stylised openwork flowerhead set with old brilliant and rose-cut diamonds, mounted in silver and gold, old br...

DIAMOND SINGLE-STONE RINGSet with an old brilliant-cut diamond, diamond approx. 1.05cts, ring size approx. KFor further information on this lot pl...

OPAL AND DIAMOND BAR BROOCH, LATE 19TH CENTURYThe heart-shaped opal cabochon within a double surround of rose-cut diamonds, later brooch fitting, ...

CHAIN NECKLACE AND BRACELETOf heavy cable-linking, lengths: 1st 53.4cm, 2nd 22.5cm (2)For further information on this lot please visit Bonhams.co...

GIODORO: TOURMALINE AND DIAMOND FLOWER BROOCHThe cabochon tourmaline and brilliant-cut diamond flower between polished leaves, issuing pink and gr...

GÜBELIN: EMERALD AND DIAMOND BROOCHThe leaf atop a textured branch, interspersed with cabochon-cut emeralds and brilliant-cut diamonds, diamonds a...

SAPPHIRE, SYNTHETIC SAPPHIRE AND DIAMOND DRESS RING, MID 20TH CENTURYBicoloured, of openwork geometric design set with French-cut sapphires and ol...

FANCY-LINK BRACELETThe bracelet of polished finish, decorated with floral motifs, length 18.6cmFor further information on this lot please visit Bo...

DIAMOND AND COLOURED DIAMOND HEART PENDANT/NECKLACE, 1990The openwork pendant set with brilliant-cut diamonds, suspending a pear-shaped diamond of...

EMERALD AND DIAMOND BROOCHThe oval-cut emeralds and tapered baguette and brilliant-cut diamonds set within a scrolling, polished frame, diamonds a...

FABERGÉ: SAPPHIRE, ENAMEL AND DIAMOND RINGThe oval cabochon-cut sapphire between tapered brilliant-cut diamond and blue enamel shoulders, signed F...

FABERGÉ: ENAMEL AND DIAMOND-SET EARRINGSEach decorated with brown guilloché enamel with a central row of brilliant-cut diamonds, signed Fabergé, n...

TIFFANY: RUBY-SET SHELL BROOCH/PENDANT AND EARCLIP SUITEThe reeded shell brooch set with cabochon rubies, the earrings of matching design, signed...

STUART DEVLIN: SILVER-GILT 'PISCES' PENDANT/NECKLACE, 1978The pair of circling fish within a flaming surround, mounted in silver-gilt, suspended ...

PAIR OF DIAMOND-SET BANGLESEach hoop with circular-motifs set with brilliant-cut diamonds, inner circumference very approx. 18.5cm (2)For further...

TIFFANY: DIAMOND FLOWER BROOCHThe brilliant-cut diamond cluster, within a brushed petal surround, diamonds approx. 0.50ct total, signed Tiffany an...

STUART DEVLIN: RHODOCHROSITE AND CULTURED PEARL RING AND EARCLIPS, 1977-1978The ring set with rhodochrosite beads and cultured pearls, amongst pol...

GOLD EARRINGS, 1991Each 18 carat gold earring of reeded design, London hallmark, length 2.1cmFor further information on this lot please visit Bonh...

SCHLUMBERGER FOR TIFFANY: BUTTERFLY DIAMOND NECKLACESet with brilliant and pear-shaped diamonds, signed Schlumberger, Tiffany & Co., lengths: pen...

FRESHWATER CULTURED PEARL NECKLACEThe two rows of 11.7-15.1mm freshwater cultured pearls of rose, purple, gold and cream tint, length of shortest ...

FOUR GEM SET RINGS1st: The 10.4mm black cultured pearl and 10.0mm white cultured pearl set obliquely, to single-cut diamond shoulders, 2nd: Set wi...

DIAMOND-SET COIN PENDANT, 1980, AND PEARL-SET BUTTERFLY BROOCH/PENDANT1st: The half Krugerrand within a polished border, accented by brilliant-cut...

YELLOW SAPPHIRE AND DIAMOND PENDANT/NECKLACE AND EARRINGSThe necklace set with an oval-cut yellow sapphire within a brilliant-cut and pear-shaped ...