A CARVED MOONSTONE, DIAMOND AND PEARL MOUTH OF TRUTH PENDANT NECKLACE, EARLY 20TH CENTURY in white gold, the foliate pendant set with a carved moonstone Mouth of Truth, accented by rose cut diamonds and a pearl drop, suspended from a chain, chain wit

Estimate £4,000 - £6,000

AN ANTIQUE IMPERIAL TOPAZ AND PEARL RIVIERE NECKLACE in 14ct yellow gold, comprising a row of oval and cushion cut imperial topaz, the clasp set with an elongated oval cut imperial topaz in a cluster of pearls, no assay marks, 40.5cm, 29.6g. 

Estimate £6,000 - £8,000

A FINE DIAMOND RIVIERE NECKLACE in platinum, set with a row of round brilliant cut diamonds all totalling 11.0-12.0 carats, no assay marks, 42.0cm, 28.4g.  

Estimate £12,000 - £16,000

BOUCHERON, A SAPPHIRE AND DIAMOND NECKLACE in 18ct yellow gold, set with three cabochon sapphires accented by round brilliant cut diamonds, suspended from a curb chain, signed Boucheron and numbered, stamped OR 750, 40.0cm, 21.4g. 

Estimate £1,500 - £2,500

ALEXANDRE REZA, A PEARL, EMERALD AND SAPPHIRE CHOKER NECKLACE in 18ct yellow gold, comprising two rows of pearls accented by spacers set with oval cabochon emeralds and pear cut sapphires, inscribed SP12.54 EC10.40, signed Alexander Reza, stamped OR7

Estimate £2,500 - £3,500

AN ANTIQUE IMPERIAL TOPAZ RIVIERE NECKLACE in high carat yellow gold, comprising a row of oval cut Imperial topaz suspending a detachable pendant/brooch comprising a round cut topaz in a cluster of oval cut topaz, the topaz all totalling 100.0-120.0

Estimate £15,000 - £20,000

A PEARL AND DIAMOND CHOKER NECKLACE, EARLY 20TH CENTURY in 18ct white gold, comprising eight rows of pearls with a detachable pendant in scrolling design, the pendant set throughout with old cut diamonds all totalling 5.0-5.2 carats, no assay marks,

Estimate £8,000 - £12,000

CARTIER, A DIAMOND PENDANT NECKLACE in 18ct white gold, comprising a trace chain set with round brilliant cut diamonds, suspending a round brilliant cut diamond pendant of approximately 1.01 carats, the diamonds all totalling 2.3-2.5 carats, signed C

Estimate £8,000 - £12,000

AN IMPORTANT NATURAL SALTWATER PEARL NECKLACE WITH CARTIER CLASP in 18ct yellow gold, comprising five rows of graduating natural saltwater pearls ranging from 3.9mm to 9.0mm, the clasp set with a natural pearl of 9.3mm, clasp signed Cartier Paris, Fr

Estimate £200,000 - £300,000

A PINK SAPPHIRE AND DIAMOND NECKLACE in 18ct white gold, set with a row of oval and pear cut pink sapphires accented by round brilliant cut diamonds, suspending a drop set with a round brilliant cut diamond and rows of further pink sapphires, the pin

Estimate £12,000 - £16,000

GIULIANO, AN ANTIQUE RUBY AND PEARL FRINGE NECKLACE in yellow gold, comprising fluted links suspending links set with pearls and cabochon rubies, the rubies all totalling 35.0-40.0 carats, C & AC maker's mark, no assay marks, 38.0cm, 37.2g. Accompani

Estimate £35,000 - £45,000

BOUCHERON, A DIAMOND AND ENAMEL TROUBLE SNAKE PENDANT NECKLACE in 18ct white gold, the pendant designed as a coiled snake set with round brilliant cut diamonds, the eyes set with black enamel, the diamonds all totalling 0.9-1.0 carats, suspended from

Estimate £3,000 - £5,000

AN ANTIQUE BERLIN IRONWORK PENDANT NECKLACE comprising a fancy link chain suspending an openwork heart and cross pendant, set to the centre with the bust of a cherub, no assay marks, necklace 52.0cm, pendant 15.0cm, 36.3g. 

Estimate £5,000 - £7,000

AN ANTIQUE AQUAMARINE, PINK TOURMALINE AND CHRYSOBERYL FRINGE NECKLACE in 15ct yellow gold, comprising a fringe of oval, round and cushion cut aquamarines, pink tourmalines and chrysoberyls, suspended from a trace chain, stamped 15C, 37.5cm, 9.3g. 

Estimate £2,500 - £3,500

A GARNET BEAD AND PEARL SAUTOIR NECKLACE comprising five rows of garnet beads suspending a tassel formed of forty six rows of garnet beads accented by pearls, necklace 64.0cm, tassel 13.5cm, 187.0g. 

Estimate £2,000 - £3,000

AN EMERALD AND DIAMOND PENDANT NECKLACE the pendant set with an octagonal step cut emerald of approximately 4.16 carats in a cluster of old cut diamonds, suspending a detachable drop set with two old cut diamonds and a pear shaped old cut diamond of

Estimate £20,000 - £30,000

AN ANTIQUE AUSTRIAN DIAMOND AND RUBY FRINGE NECKLACE, 19TH CENTURY in yellow gold, set with a row of rose cut diamonds suspending a foliate fringe set throughout with rose cut diamonds, accented by round and cabochon cut rubies, no assay marks, 46.0c

Estimate £6,000 - £8,000

AN ANTIQUE ENAMEL AND DIAMOND NECKLACE in yellow gold, comprising a snake link necklace set with five graduated scrolling links, the links set with a row of old cut diamonds and decorated with blue enamel, suspending an oval locket pendant decorated

Estimate £6,000 - £8,000

GUBELIN, A PINK SAPPHIRE NECKLACE in 18ct rose gold, comprising a row of twenty one swirling links set with round cut pink sapphires, the pink sapphires all totalling 26.46 carats, signed Gubelin and numbered, stamped 750, 47.0cm, 143.1g. Retailed fo

Estimate £12,000 - £16,000

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND PENDANT NECKLACE designed as a floral wreath surmounted by a bow, set with old cut diamonds, the diamonds all totaling 1.0-1.1 carats, suspending a pearl drop of 12.0mm, suspended from a trace chain, cha

Estimate £10,000 - £15,000

TIFFANY & CO., AN ANTIQUE BURMA NO HEAT RUBY, COLOMBIAN EMERALD AND NATURAL PEARL NEGLIGEE NECKLACE, EARLY 20TH CENTURY in platinum, the fancy link chain set with French and old cut diamonds, white and golden natural pearls, cabochon rubies and caboc

Estimate £15,000 - £20,000

TIFFANY & CO., A NEPHRITE JADE BEAD SAUTOIR NECKLACE in yellow gold, comprising a row of polished nephrite jade beads accented by gold beads, terminating in a black silk tassel, stamped T&CO, no assay marks, necklace 81.0cm, drop 16.0cm, 215.0g

Estimate £4,000 - £6,000

A VINTAGE ITALIAN DIAMOND COLLAR NECKLACE in 18ct yellow gold, the collar suspending a fringe of articulated discs, one of which is pave set with round brilliant cut diamonds, stamped 750, Italian assay marks, inner circumference 36.0cm, 28.7g. 

Estimate £2,000 - £3,000