VAN CLEEF & ARPELS, A RARE TIGER'S EYE TWENTY MOTIF VINTAGE ALHAMBRA NECKLACE in 18ct yellow gold, comprising twenty beaded quatrefoil links set with polished tiger's eye, connected by lengths of chain, signed VCA and numbered, French assay mark, 79.

Estimate £10,000 - £15,000

A FINE EMERALD AND DIAMOND CLUSTER RIVIERE NECKLACE set with a graduating row of oval cut emeralds in borders of round brilliant cut diamonds, the emeralds all totalling 55.0-60.0 carats, the diamonds all totalling 5.5-6.0 carats, stamped 18K, 42.0cm

Estimate £20,000 - £30,000

A FINE ANTIQUE DIAMOND NEGLIGEE NECKLACE, EARLY 20TH CENTURY in yellow gold and platinum, designed as a graduating, stylised ribbon set with old cut diamonds, suspending two articulated clusters of further old cut diamonds, suspended from a later tra

Estimate £3,000 - £5,000

A 10.51 CARAT DIAMOND RIVIERE NECKLACE comprising a row of graduating round brilliant cut diamonds, the diamonds totalling 10.51 carats, stamped 750, 43.0cm, 20.5g.

Estimate £8,000 - £12,000

NO RESERVE - A VINTAGE CORAL, TURQUOISE AND SAPPHIRE NECKLACE in 14ct yellow gold, comprising three rows of polished coral beads ranging approximately 6.0-6.6mm, the clasp set with an oval cabochon coral, round cut sapphires and round cabochon turquo

Estimate £400 - £600

BLACK STARR & FROST, AN ANTIQUE PERIDOT AND DIAMOND PENDANT NECKLACE the openwork pendant set with an oval cut peridot accented by old cut diamonds, suspending a pear cut peridot drop set with a further old cut diamond, suspended from a fancy link ch

Estimate £1,200 - £1,600

TIFFANY & CO., A DIAMOND KEY PENDANT NECKLACE in platinum, the pendant designed as a key set with round brilliant cut diamonds, suspended from a trace chain, signed Tiffany & Co., stamped PT950, pendant 3.0cm, chain 41.0cm, 4.4g.

Estimate £1,200 - £1,600

A TWO ROW CORAL BEAD NECKLACE in 9ct yellow gold, comprising two rows of graduating polished coral beads, the clasp set with an oval cabochon coral, stamped 375, 41.5cm, 33.4g. 

Estimate £500 - £700

A FINE MULTICOLOUR SAPPHIRE AND DIAMOND BIB NECKLACE set throughout with rose cut blue, yellow, pink, green and orange sapphires, accented by round brilliant cut diamonds, the sapphires all totalling 160.0-170.0 carats, 41.0cm, 95.5g. 

Estimate £10,000 - £15,000

A THREE ROW BLACK PEARL NECKLACE comprising three rows of black pearls, stamped 750, shortest row 62.0cm, 171.4g. 

Estimate £1,000 - £1,500

A LABRADORITE AND DIAMOND SKULL PENDANT NECKLACE the pendant set with carved labradorite and rose cut diamonds, suspended from a trace chain, chain stamped 925, pendant 4.5cm, chain 38.0cm, 16.4g. 

Estimate £400 - £600

AN EMERALD CROSS PENDANT NECKLACE the cross pendant set with square step cut emeralds, suspended from a box chain, stamped 750, pendant 1.7cm, chain 44.5cm, 2.8g. 

Estimate £250 - £350

A DIAMOND NECKLACE in yellow and rose gold, comprising a row of openwork rectangular links set with rose cut diamonds, suspended from a fancy link chain, French import marks, 40.5cm, 16.1g. 

Estimate £4,000 - £6,000

A TAHITIAN BLACK PEARL AND DIAMOND FLOWER NECKLACE in 18ct white gold, comprising a row of black pearls, suspending an openwork flower set with a further pearl and round brilliant cut diamonds, full British hallmarks for London 2011, 41.5cm, 67.2g. 

Estimate £2,500 - £3,500

NO RESERVE - LINKS OF LONDON, A DIAMOND BEE PENDANT NECKLACE in 18ct rose gold, the pendant designed as a bee, the wings pave set with single cut diamonds, suspended from a beaded chain, Links of London maker's mark, full hallmarks for Edinburgh 2012

Estimate £150 - £250

A THREE ROW PEARL AND DIAMOND NECKLACE comprising three rows of graduating pearls ranging from 2.2mm to 5.7mm, the clasp set with round brilliant cut diamonds, stamped 750, 38.0cm, 24.4g.

Estimate £300 - £500

A DIAMOND CURB CHAIN NECKLACE comprising a flat curb link chain accented by three round brilliant cut diamonds, the diamonds all totalling approximately 1.00 carat, stamped 750, 43.0cm, 34.7g. 

Estimate £2,000 - £3,000

A GOLD NECKLACE in 9ct yellow gold, comprising rows of woven links in crossover design, with three interchangeable foliate style charms set with round cut amethyst, round cabochon turquoise, round cut rubies and a pearl, full British hallmarks, 41.0c

Estimate £600 - £800

LINKS OF LONDON, A DIAMOND MOON PENDANT NECKLACE in 18ct white gold, the pendant designed as a moon, pave set with round brilliant cut diamonds, one diamond deficient suspended from a trace chain, signed Links London, full British hallmarks for Londo

Estimate £250 - £350

AN EMERALD LINE NECKLACE set with a row of round cut emeralds all totalling 3.89 carats, inscribed 3.89ct, stamped 18K, 35.0cm, 17.6g. 

Estimate £1,800 - £2,200

A PEARL NECKLACE comprising a single row of pearls ranging from 13.0mm-15.0mm, stamped AU585, 46.0cm, 95.6g. 

Estimate £300 - £500

A PINK PEARL NECKLACE comprising a single row of pink pearls, the pearls ranging from 14.0mm-15.0mm, stamped 750, 44.5cm, 123.1g. 

Estimate £2,500 - £3,500

A VINTAGE RUBY CROSSOVER NECKLACE in yellow gold, comprising three rows of fancy links in crossover design, set with round cut rubies, full British hallmarks for Birmingham 1976, stamped 375, 40.0cm, 56.3g. 

Estimate £1,500 - £2,500

A PINK SAPPHIRE AND DIAMOND CROSS PENDANT AND CHAIN the pendant set with French cut pink sapphires in a border of round brilliant cut diamonds, suspended from a curb chain, stamped 750, pendant 2.9cm, chain 41.0cm, 5.4g. 

Estimate £700 - £900

AN ANTIQUE ART NOUVEAU DIAMOND, PEARL AND ENAMEL PENDANT NECKLACE in yellow gold, the pendant designed as a flower decorated with pink, yellow and green enamel, set with an old European cut diamond and pearl, suspending a pearl drop, suspended from a

Estimate £2,500 - £3,500

A DIAMOND RIVIERE NECKLACE comprising a row of graduating round brilliant cut diamonds, the diamonds totalling approximately 12.84 carats, stamped 750, 44.5cm, 26.4g. 

Estimate £10,000 - £15,000

A TURQUOISE AND DIAMOND NECKLACE comprising a row of oval cabochon turquoise in borders of round brilliant cut diamonds, the diamonds all totalling 5.28 carats, stamped 18K, 46.0cm, 53.5g. 

Estimate £10,000 - £15,000

A THREE ROW PEARL NECKLACE comprising three rows of grey, cream and white pearls, stamped 375, shortest row, 40.0cm, 82.3g. 

Estimate £300 - £500

AN EMERALD AND DIAMOND CLOVER NECKLACE the pendant designed as a four leaf clover set with a round brilliant cut diamond and four oval cut emeralds, suspended from a fancy link chain, stamped 750, pendant 1.1cm, chain 49.0cm, 2.0g. 

Estimate £300 - £500

A DIAMOND LINE NECKLACE set with a row of round brilliant cut diamonds all totalling 6.00 carats, stamped 14K, 43.0cm, 23.0g. 

Estimate £2,500 - £3,500

A PEARL NECKLACE comprising a single row of pearls ranging from 12.0mm-13.0mm, 77.0cm, 158.8g. 

Estimate £300 - £500

A GREY PEARL, PINK PEARL AND DIAMOND NECKLACE in 18ct white gold, comprising a row of grey and pink pearls ranging from 11.3mm-15.0mm, the clasp set with round cut diamonds, partial British hallmarks, stamped 750, 43.5cm, 93.1g. 

Estimate £400 - £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 NATURAL SALTWATER PEARL, SAPPHIRE AND DIAMOND NECKLACE comprising two rows of pearls ranging from 3.1mm-8.0mm accented by pairs of seed pearls, the clasp set with a round cut sapphire accented by rose cut diamonds, no assay marks, 41.0cm, 33.5g. Ac

Estimate £6,000 - £8,000

A GOLDEN AND WHITE PEARL PENDANT NECKLACE the pendant set with a golden pearl of 10.0mm and a white pearl of 8.4mm in a border of round cut diamonds, suspended from a row of golden and white pearls. stamped 750, pendant 3.1cm, necklace 44.0cm, 33.1g.

Estimate £1,000 - £1,500

NO RESERVE - A MULTIGEM BEAD NECKLACE comprising five rows of faceted blue, yellow and orange sapphire, ruby and emerald beads, no assay marks, length adjustable, 75.1g. 

Estimate £200 - £300

A DIAMOND CROSS PENDANT NECKLACE the pendant designed as a cross pave set with princess and round brilliant cut diamonds, suspended from a spiga chain necklace, the diamonds all totalling 3.5-3.7 carats, pendant stamped 18K, chain stamped 750, pendan

Estimate £2,000 - £3,000