MARCO BICEGO, AN AMETHYST, PINK TOURMALINE AND PERIDOT NECKLACE in 18ct white gold, comprising a row of brushed links accented by polished amethyst, pink tourmaline and peridot beads, signed Bicego, Italian assay marks, stamped 750, 43.0cm, 24.7g. 

Estimate £2,000 - £3,000

A RUBELLITE TOURMALINE AND DIAMOND HEART PENDANT NECKLACE the pendant set with a heart cut rubellite tourmaline of 2.92 carats, suspended from a trace chain punctuated by round brilliant cut diamonds, stamped 750, pendant 0.4cm, chain 45.0cm, 2.8g. 

Estimate £1,000 - £1,500

A 12.50 CARAT DIAMOND RIVIERE NECKLACE set with a graduating row of round brilliant cut diamonds all totalling 12.50 carats, stamped 750, 44.0cm, 26.2g. 

Estimate £10,000 - £15,000

A MOONSTONE CHAIN NECKLACE comprising a trace chain set with round cabochon moonstones, stamped 585, 45.0cm, 5.0g. 

Estimate £600 - £800

TIFFANY & CO., A DIAMOND SOLESTE PENDANT NECKLACE the circular pendant set with round brilliant cut diamonds, suspended from a trace chain, signed Tiffany & Co., stamped PT950, pendant 0.9cm, chain 42.0cm, 3.2g.

Estimate £700 - £900

AN OPAL AND DIAMOND NECKLACE comprising a trace chain set with oval cabochon opals in borders of round cut diamonds, suspending three pear shaped cabochon opal drops in borders of further diamonds, the opals totalling 17.30 carats, the diamonds total

Estimate £1,200 - £1,600

A RUBY AND DIAMOND PENDANT NECKLACE the pendant set with a cluster of pear cut rubies in a border of round cut diamonds, suspended from a trace chain punctuated by further diamonds, the rubies totalling 0.80 carats, suspended from a trace chain punct

Estimate £500 - £700

A PERIDOT AND DIAMOND HEART NECKLACE the pendant set with a heart cut peridot of 5.18 carats in a cluster of round brilliant cut diamonds, suspended from a trace chain punctuated by further diamonds, stamped 750, pendant 1.6cm, chain 45.0cm, 5.8g. 

Estimate £1,000 - £1,500

A DIAMOND LIPS PENDANT NECKLACE the pendant designed the outline of a pair of lips set with round cut diamonds, suspended from a trace chain punctuated by further diamonds, the diamonds totalling 0.56 carats, stamped 925, pendant 3.7cm, chain 45.0cm,

Estimate £80 - £120

A MOONSTONE AND DIAMOND PENDANT NECKLACE the pendant set with a pear shaped cabochon moonstone of 6.39 carats in a border of round cut diamonds, suspended from a trace chain punctuated by further diamonds, stamped 750, pendant 1.8cm, chain 46.0cm, 3.

Estimate £800 - £1,200

AN OPAL AND DIAMOND PENDANT NECKLACE the pendant set with a round cabochon opal of 3.91 carats in a border of round brilliant cut diamonds, suspended from a trace chain punctuated by further diamonds, stamped 750, pendant 1.5cm, chain 44.0cm, 4.7g. 

Estimate £800 - £1,200

A DIAMOND NECKLACE the central section set with pairs of round brilliant cut diamonds, the diamonds all totalling 1.9-2.0 carats, on a fancy link chain, stamped 750, 41.0cm, 25.0g. 

Estimate £1,200 - £1,600

A NATURAL SALTWATER PEARL AND DIAMOND NECKLACE comprising a single row of pearls ranging from 3.8mm-8.4mm, the clasp set with a cluster of rose cut diamonds, clasp with Swedish assay marks, stamped 18K, 40.5cm, 20.7g. Accompanied by an antique jewell

Estimate £6,000 - £8,000

AN EMERALD AND DIAMOND PENDANT NECKLACE the pendant set with a row of octagonal step cut emeralds in borders of round cut diamonds, the emeralds totalling 2.75 carats, the diamonds totalling 0.60 carats, suspended from a trace chain, stamped 18K 750,

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND NECKLACE the pendant set with an octagonal step cut emerald of 21.50 carats in a border of round brilliant and baguette cut diamonds, accented by a cluster of pear, marquise and round brilliant cut diamonds, suspended from a ch

Estimate £18,000 - £26,000

A SAPPHIRE AND DIAMOND PENDANT NECKLACE the pendant set with a row of alternating oval cut sapphires and trillion cut diamonds, round brilliant cut diamonds set to the bail, the diamond all totalling 0.54 carats, the sapphires all totalling 5.88 cara

Estimate £3,000 - £5,000

A RED CORAL BEAD NECKLACE comprising a row of graduating faceted coral beads ranging from 8.4mm-17.1mm, no assay marks, 51.0cm, 98.5g.

Estimate £2,500 - £3,500

AN AMETHYST CHAIN NECKLACE comprising a row of oval links punctuated by round cabochon amethysts, the amethysts totalling 101.24 carats, no assay marks, 98.0cm, 40.5g. 

Estimate £2,500 - £3,500

AN ONYX AND DIAMOND HEART PENDANT NECKLACE the heart shaped pendant set with polished onyx in a border of round cut diamonds, suspended from a trace chain, stamped 14K, pendant 2.1cm, chain 44.0cm, 6.8g. 

Estimate £400 - £600

A DIAMOND PENDANT NECKLACE the pendant set with baguette and round brilliant cut diamonds, in a border of further diamonds, suspended from a trace chain, stamped 585, pendant 1.4cm, chain 45.0cm, 2.6g. 

Estimate £400 - £600

AN EMERALD AND DIAMOND PENDANT NECKLACE the pendant set with an octagonal step cut emerald of 0.71 carats in a border of round cut diamonds, suspended from a trace chain punctuated by further diamonds, stamped 750, pendant 1.0cm, chain 45.0cm, 2.6g. 

Estimate £800 - £1,200

A SNAKE CHAIN NECKLACE in yellow gold, comprising an antique foxtail chain, the modern clasp designed as a snake's head, the eyes set with cabochon garnets, no assay marks, 133.0cm, 47.8g. 

Estimate £4,000 - £6,000

A SAPPHIRE COLLAR NECKLACE comprising three rows of oval cut sapphires, the sapphires totalling 45.0-50.0 carats, stamped 18K, 41.0cm, 35.4g.

Estimate £3,000 - £5,000

AN EMERALD AND DIAMOND PENDANT NECKLACE comprising a row of old European cut diamonds and an octagonal step cut emerald, suspending a star shaped drop set with an octagonal step cut emerald in a cluster of old cut diamonds, the diamonds all totalling

Estimate £1,000 - £1,500

A CORAL NECKLACE comprising a row of polished coral twigs and beads, no assay marks, 45.0cm, 21.2g. 

Estimate £250 - £350

A DIAMOND RIVIERE NECKLACE in 18ct white gold, set with a row of graduating round brilliant cut diamonds, the diamonds all totalling 5.5-6.0 carats, partial British hallmarks, 42.0cm, 16.4g.

Estimate £3,500 - £5,500

A ROSE QUARTZ AND DIAMOND PENDANT NECKLACE the pendant set with an oval cabochon rose quartz carved in foliate design in a border of round cut diamonds, further diamonds set to the bail, chain stamped 925, pendant 5.0cm, chain 65.0cm, 16.6g. 

Estimate £600 - £800

AN EMERALD AND DIAMOND NECKLACE the curved  pendant set with a row of round cut emeralds, accented by a row of round brilliant cut diamonds, suspending a drop set with a pear cut emerald in a border of further diamonds, suspended from a fancy link ch

Estimate £1,000 - £1,500

A TSAVORITE GARNET AND DIAMOND PENDANT NECKLACE the pendant set with an oval cut tsavorite garnet of 1.50 carats in a cluster of rose cut diamonds, suspended from a trace chain, pendant stamped 18K, chain stamped Au750, pendant 1.7cm, chain 45.0cm, 2

Estimate £600 - £800

A DIAMOND CRESCENT MOON PENDANT NECKLACE the pendant designed as a crescent moon set with round cut diamonds, suspended from a trace chain punctuated by further diamonds, stamped 585, pendant 2.8cm, chain 46.0cm, 2.9g. 

Estimate £200 - £300

A DIAMOND NECKLACE the stylised necklace set throughout with round cut diamonds, the diamonds all totalling 8.0-8.5 carats, signed Jafa, stamped 14k, 39.0cm 37.4g. 

Estimate £2,500 - £3,500

A PEARL AND DIAMOND PENDANT NECKLACE the pendant set with round brilliant cut diamonds suspending a pearl drop, suspended from a trace chain, stamped 375, pendant 2.0cm, chain 46.0cm, 3.2g.

Estimate £250 - £350

AN AQUAMARINE AND DIAMOND PENDANT NECKLACE in 18ct white gold, the pendant set with an oval cut aquamarine of 0.98 carats in a border of round cut diamonds, suspended from a trace chain, pendant stamped 18K, chain with British import marks, pendant 1

Estimate £500 - £700

A FRENCH SAPPHIRE AND DIAMOND PENDANT NECKLACE in 18ct white gold, the pendant set with a marquise cut sapphire in a cluster of round cut diamonds, suspended from a trace chain, French assay marks, pendant 2.1cm, chain 40.0cm, 7.4g.

Estimate £1,200 - £1,600

A MULTICOLOUR SAPPHIRE AND DIAMOND NECKLACE set with a row of seven baguette cut orange, pink, blue and green sapphires, accented with two round cut diamonds, suspended from a trace chain set with further multicolour sapphires, stamped 14K, 46.6cm, 3

Estimate £500 - £700

A RUBY AND DIAMOND PENDANT NECKLACE the pendant set with an oval cut ruby of 1.00 carat in a cluster of rose cut diamonds, suspended from a trace chain, stamped Au750, pendant 1.7cm, chain 45.0cm, 2.7g. 

Estimate £600 - £800

A GARNET CROSS PENDANT NECKLACE the pendant designed as a cross set with pear cut garnets, the garnets all totalling 5.00 carats, suspended from a trace chain, inscribed 5.00, stamped K18, pendant 4.00cm, chain 38.0cm, 3.1g. 

Estimate £300 - £500

A SAPPHIRE AND DIAMOND PENDANT NECKLACE in 18ct white gold, the pendant set with an oval cut sapphire of 0.88 carats in a cluster of round brilliant cut diamonds, suspended from a trace chain, pendant stamped 18K, chain with partial British hallmarks

Estimate £500 - £700