A DIAMOND CHAIN NECKLACE in 18ct white gold, the trace chain set with ten round brilliant cut diamonds, the diamonds all totalling 2.00 carats, stamped 750, 46.0cm, 5.1g. 

Estimate £1,500 - £2,500

TIFFANY & CO., A GOLD BUCKLE CHOKER NECKLACE in 18ct yellow gold, the gold mesh necklace designed as a belt buckle, signed Tiffany & Co., stamped 750, stamped 2000, 41.0cm, 51.9g. 

Estimate £4,500 - £5,500

A BLACK OPAL AND DIAMOND PENDANT NECKLACE in 18ct yellow gold, the pendant set with a cabochon black opal accented by round brilliant cut diamonds, suspended from a spiga chain, stamped 750, pendant 3.4cm, chain 38.0cm, 10.3g. 

Estimate £800 - £1,200

A DIAMOND NECKLACE in white gold and platinum, set with a row of round brilliant cut diamonds, the centre of the necklace designed as a tapering row of baguette cut diamonds, the diamonds totalling 8.5-9.5 carats, no assay marks, 40.0cm, 51.1g. 

Estimate £6,000 - £8,000

A NATURAL SALTWATER PEARL AND DIAMOND NECKLACE in white gold, comprising a row of graduating pearls ranging from 3.9mm to 8.2mm, the clasp set with old cut diamonds, no assay marks, 44.0cm, 16.1g. 

Estimate £12,000 - £16,000

TIFFANY & CO., A DIAMOND SIGNATURE NECKLACE in 18ct yellow gold, comprising three strands of fluted links, accented by round brilliant cut diamonds all totalling 3.5-4.0 carats, signed Tiffany & Co. 1992, partial British hallmarks, 38.0cm, 125.7g. 

Estimate £8,000 - £12,000

AN ANTIQUE AMETHYST RIVIERE NECKLACE in yellow gold, comprising a row of oval cut amethysts, no assay marks, 37.5cm, 49.5g. 

Estimate £3,000 - £5,000

A DIAMOND PENDANT NECKLACE in rose gold, the diamond shaped pendant set with a cluster of princess and trillion cut diamonds in a border of round cut diamonds, suspending two spherical drops, suspended from a trace chain, no assay marks, pendant 4.1c

Estimate £1,000 - £1,500

A TWO ROW NATURAL SALTWATER PEARL AND DIAMOND NECKLACE comprising two rows of graduating pearls ranging from 3.4mm to 8.6mm, the clasp set with old and single cut diamonds, clasp inscribed 'Joan', no assay marks, 53.0cm, 40.0g. Accompanied by a gemmo

Estimate £25,000 - £30,000

A FINE NATURAL SALTWATER PEARL AND DIAMOND NECKLACE in yellow gold and silver, comprising a row of pearls ranging from 5.5mm to 6.6mm, the clasp set with an old European cut diamond of approximately 1.55 carats, no assay marks, 42.0cm, 19.4g. Accompa

Estimate £25,000 - £30,000

A SAPPHIRE, EMERALD AND DIAMOND PANTHER PENDANT NECKLACE in white gold and platinum, the pendant designed as a panther head suspending a hoop from its mouth, set throughout with cabochon sapphires and round brilliant cut diamonds, the eyes set with m

Estimate £3,500 - £4,500

A PINK TOURMALINE SLICE AND DIAMOND NECKLACE in 18ct rose gold, comprising a trace chain set with two pink tourmaline slices accented by round brilliant cut diamonds, stamped 750, 102.0cm, 24.0g. 

Estimate £1,500 - £2,500

DE GRISOGONO, A SAPPHIRE, AMETHYST AND DIAMOND CHIOCCIOLINA NECKLACE in 18ct rose gold, the scrolling pendant set with a cluster of briolette cut amethysts and blue sapphires, in a border of round cut ombre blue sapphires and round brilliant cut diam

Estimate £5,000 - £7,000

A PINK TOURMALINE AND DIAMOND NECKLACE in 18ct yellow and white gold, comprising a row of fancy links set with a hexagonal cut pink tourmaline accented by round brilliant cut diamonds, stamped 750, 42.0cm, 23.9g. 

Estimate £1,000 - £1,500

A DIAMOND INITIAL J PENDANT NECKLACE in white gold, the pendant designed as the letter J set with round brilliant cut diamonds, suspended from a belcher chain, chain stamped 585, pendant 2.4cm, chain 41.0cm, 7.3g. 

Estimate £400 - £600

BOODLES, A SPESSARTINE GARNET AND DIAMOND PENDANT NECKLACE in 18ct yellow gold, set with three pear shaped spessartine garnets in an openwork spiral design set with round brilliant cut diamonds, the chain accented by round brilliant cut diamonds, sig

Estimate £2,500 - £3,500

AN INDIAN POLKI DIAMOND AND ENAMEL NECKLACE in yellow gold and silver, comprising a row of polki cut diamonds in a border of black enamel, no assay marks, 46.5cm, 46.6g. 

Estimate £3,000 - £5,000

A SAPPHIRE AND DIAMOND NECKLACE in 18ct yellow gold, the flat snake link necklace set with pairs of marquise cut sapphires and round brilliant cut diamonds, suspending a detachable  pendant set with a pear cut sapphire of 3.33 carats and a trio of ma

Estimate £3,000 - £5,000

A FINE THREE ROW NATURAL SALTWATER PEARL AND DIAMOND NECKLACE in yellow gold, comprising three rows of graduating pearls ranging from 3.2mm to 8.8mm, the clasp set with old cut diamonds, no assay marks, 44.0cm, 58.4g. Accompanied by a gemmological re

Estimate £50,000 - £60,000

STEFAN HAFNER, A PINK AND YELLOW DIAMOND COLLAR NECKLACE in 18ct yellow gold, the tapering openwork collar necklace set with clusters of marquise cut white, yellow and purplish-pink diamonds, accented by rows of round brilliant cut diamonds, the whit

Estimate £100,000 - £150,000

A RUBY, PINK SAPPHIRE AND WHITE SAPPHIRE BEAD NECKLACE in 14ct yellow gold, comprising five rows of faceted ruby, pink sapphire and white sapphire beads, suspending a tassel of further beads, clasp stamped 585,  46.0cm, 44.0g.

Estimate £600 - £800

A DIAMOND AND PEARL NECKLACE in white and yellow gold, reverse set with an oval cut diamond of approximately 10.02 carats in an openwork surround set with further old cut diamonds suspending a pearl of 11.9mm, suspended from a fancy link chain, no as

Estimate £20,000 - £30,000

AN ANTIQUE NATURAL SALTWATER PEARL, EMERALD AND DIAMOND NECKLACE in yellow gold and silver, comprising a single row of pearls ranging from 4.7mm to 6.9mm, the clasp set with a rectangular step cut emerald in a cluster of old cut diamonds, no assay ma

Estimate £20,000 - £30,000

A LONG ANTIQUE BELCHER CHAIN NECKLACE in yellow gold, comprising a belcher chain with star decoration, the clasp set with oval cabochon chalcedony, no assay marks, 110.0cm, 70.5g. 

Estimate £6,000 - £8,000

AN ANTIQUE GARNET RIVIERE NECKLACE in 9ct yellow gold, comprising a single row of oval cut cut garnets, stamped 9CT, 40.0cm, 15.8g. 

Estimate £1,500 - £2,500

AN ANTIQUE DIAMOND FRINGE NECKLACE in yellow gold and silver, set with a row of old cut diamonds, suspending a graduating foliate style fringe set with further old cut diamonds, no assay marks, 39.0cm, 20.2g. 

Estimate £6,000 - £8,000

A DIAMOND NECKLACE in 18ct white gold, the necklace comprising two rows of baguette and round brilliant cut diamonds, accented by scrolling motifs set with further baguette cut diamonds, the diamonds all totalling 20.0-23.0 carats, stamped 18K, 36.0c

Estimate £30,000 - £35,000

AN EMERALD AND DIAMOND PENDANT NECKLACE in 18ct white gold, the pendant set with a pear cut emerald of 2.26 carats accented by round brilliant and baguette cut diamonds, suspended from a fancy link chain, stamped K18, pendant 4.1cm, chain 45.0cm, 5.4

Estimate £1,500 - £2,500