RAYMOND YARD, A DIAMOND THREE STONE RING, CIRCA 1940 in platinum, set with three old European cut diamonds in an openwork mount set with further old cut diamonds, the principal diamond weighing 1.61 carats, the diamonds all totalling 2.5-3.0 carats,

Estimate £6,000 - £8,000

CARTIER, A LAKARDA PANTHERE RING in 18ct white gold, designed as a coiled panther, set with pear cut emerald eyes, signed Cartier and numbered, French assay marks, maker's mark, size P / 7.5, 23.5g. 

Estimate £5,000 - £7,000

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a marquise cut diamond of approximately 6.00 carats, the shoulders accented by baguette cut diamonds, stamped 950, size P1/2 / 8, 6.1g. 

Estimate £15,000 - £25,000

A FINE UNHEATED RUBY AND DIAMOND THREE STONE RING in white gold, set with an oval cut ruby of 4.73 carats between two round brilliant cut diamonds, the diamonds both totalling 2.05 carats, no assay marks, size M1/2 / 6.5, 5.1g. Accompanied by a gemmo

Estimate £50,000 - £70,000

AN IMPORTANT FANCY PURPLISH PINK DIAMOND RING in platinum and 18ct white gold, set with an oval cut fancy purplish pink diamond of 1.67 carats, in a border of round brilliant cut pink diamonds, the band set with round brilliant cut diamonds, stamped

Estimate £100,000 - £150,000

ANDREW GRIMA, A MODERNIST EMERALD AND DIAMOND DRESS RING, 1973 in 18ct white gold, the oval face set with round brilliant cut diamonds, in a border of round cut emeralds, signed Grima, full British hallmarks for London 1973, size L / 5.75, 18.7g. 

Estimate £6,000 - £8,000

BULGARI, AN AQUAMARINE AND DIAMOND RING in 18ct white gold, set with an octagonal step cut aquamarine of approximately 6.00 carats in a border of baguette cut diamonds, the stylised mount pave set throughout with round brilliant cut diamonds, signed

Estimate £10,000 - £15,000

AN EXQUISITE GREEN TOURMALINE AND DIAMOND RING in platinum, set with an octagonal step cut green tourmaline of 41.14 carats, the shoulders set with trios of round brilliant cut diamonds, the diamonds all totalling 1.03 carats, no assay marks, size N

Estimate £10,000 - £15,000

AN ANTIQUE DIAMOND AND ENAMEL RING in yellow gold and silver, the diamond shaped face set with rose cut diamonds, accented by a rows of blue guilloche enamel in a lattice design, the diamonds all totalling 1.2-1.5 carats, no assay marks, size L1/2 /

Estimate £1,500 - £2,500

A 9.96 CARAT BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of 9.96 carats in a cluster of round brilliant cut diamonds, French assay marks, size L / 5.75, 5.8g. Accompanied by a gemmological report stating that th

Estimate £40,000 - £60,000

A FINE ALEXANDRITE AND DIAMOND RING in 18ct white gold, set with a cushion cut alexandrite of 1.33 carats between two trillion cut diamonds, inscribed 133, stamped 740 18K, size J1/2 / 5, 3.2g. Accompanied by a facsimile GIA report stating that the a

Estimate £3,000 - £5,000

A DIAMOND RING in yellow gold, set with a Crisscut diamond of approximately 2.95 carats on a fancy link chain band, no assay marks, size J1/2 / 5.5, 7.1g. 

Estimate £7,000 - £9,000

A GEMSET HEART BRACELET in 18ct yellow gold, designed as a row of hearts set with pear shaped cabochon amethysts, blue topaz and citrines, accented by X motifs, signed Amber, stamped 750, 18.0cm, 56.4g. 

Estimate £3,000 - £5,000

VAN CLEEF & ARPELS, A VINTAGE ONYX AND DIAMOND BOMBE RING in 18ct yellow gold, the bombe face set with polished onyx accented by circular motifs pave set with round brilliant cut diamonds, signed Van Cleef & Arpels and numbered, French assay marks, s

Estimate £8,000 - £12,000

A PAIR OF OPAL AND DIAMOND DROP EARRINGS in yellow gold, each comprising an old European cut diamond suspending an oval cabochon opal drop, no assay marks, 3.5cm, 11.7g. 

Estimate £3,500 - £4,500

NO RESERVE - CARTIER, A 1.51 CARAT SOLITAIRE DIAMOND RING in 18ct yellow gold, set with a round brilliant cut diamond of 1.51 carats, signed Cartier, stamped 18K, size J / 4.75 with sizing beads, 5.4g. 

Estimate £5,000 - £7,000

A D COLOUR SOLITAIRE DIAMOND RING in yellow gold and silver, set with an old cut diamond of 1.50 carats in a pinched collet setting, no assay marks, size M1/2 / 6.5, 2.8g. Accompanied by a facsimile GIA report stating that the diamond is D colour and

Estimate £6,000 - £8,000

A PAIR OF DIAMOND STUD EARRINGS in 18ct white gold, each set with a round brilliant cut diamond, the diamonds both totalling 1.8-2.0 carats, butterflies stamped 750, 0.7cm, 2.5g. 

Estimate £3,500 - £4,500

A 2.50 CARAT SOLITAIRE DIAMOND RING in platinum, set with an oval cut diamond of 2.50 carats, the band set with a row of round brilliant cut diamonds, no assay marks, size L / 5.75, 3.8g.

Estimate £3,500 - £5,500

A FINE CEYLON SAPPHIRE AND DIAMOND RING set with a cut-cornered lozenge cut sapphire of approximately 4.81 carats, in a border of round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 7.2g.

Estimate £5,000 - £7,000

A FINE BURMA NO HEAT RUBY AND DIAMOND RING in platinum, set with a cushion cut ruby of 2.14 carats in a border of round brilliant cut diamonds, the stylised shoulders set with further round brilliant cut diamonds and baguette cut diamonds,

Estimate £15,000 - £20,000

CARTIER, A DIAMOND, TSAVORITE GARNET AND ONYX PANTHERE RING in 18ct white gold, designed as a coiled panther, the head pave set with round brilliant cut diamonds, the eyes set with pear cut tsavorite garnets, the nose set with a polished onyx, signed

Estimate £8,000 - £12,000

BOODLES, A GREEN TOURMALINE AND DIAMOND DRESS RING in 18ct yellow gold, set with an oval cut green tourmaline of 9.69 carats in a stylised openwork setting of stars pave set with diamonds, signed Boodles, full British hallmarks, size L / 5.75, 13.0g.

Estimate £4,000 - £6,000

BULGARI, A PAIR OF BICOLOUR GOLD CLIP EARRINGS in 18ct yellow and white gold, the scrolling earrings with sections of yellow and white gold, signed Bvlgari, stamped 750, 2.3cm, 18.5g. 

Estimate £2,000 - £3,000

AN IMPORTANT 21.07 CARAT COLOMBIAN EMERALD AND DIAMOND RING in platinum, set with an octagonal step cut emerald of 21.07 carats, the shoulders set with baguette and tapered baguette cut diamonds, the diamonds totalling approximately 1.0 carats, stamp

Estimate £200,000 - £300,000

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an octagonal fancy cut sapphire of 13.56 carats in an octagonal border of round brilliant cut diamonds, the shoulders set with further round brilliant cut diamonds, s

Estimate £8,000 - £12,000

A COLOMBIAN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 1.80 carats in a border of pave set round brilliant cut diamonds, French assay marks, size L1/2 / 6, 6.9g. Accompanied by a gemmological

Estimate £4,000 - £6,000

A FANCY YELLOW DIAMOND RING in 18ct yellow gold, set with an oval cut yellow diamond of 1.00 carat, the shoulders set with tapered baguette and round brilliant cut diamonds, stamped 18K, size J / 4.75, 3.1g. 

Estimate £3,000 - £5,000

A TURQUOISE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cabochon turquoise in a triple cluster of round brilliant cut diamonds, the diamonds all totalling 1.3-1.5 carats, no assay marks, size J1/2 / 5, 15.3g. 

Estimate £2,000 - £3,000

AN IMPORTANT BURMA NO HEAT SPINEL AND DIAMOND CLUSTER RING in platinum, set with an octagonal step cut spinel of 20.08 carats in a border of round brilliant cut diamonds, no assay marks, size R / 8.75, 22.1g. Accompanied by a gemmological

Estimate £100,000 - £150,000

A 3.02 CARAT SOLITAIRE DIAMOND RING in white gold, set with a round brilliant cut diamond of 3.02 carats, accented by baguette cut diamonds, no assay marks, size P / 7.75, 4.1g. 

Estimate £12,000 - £16,000

BULGARI, A BLUE TOPAZ PYRAMID RING in 18ct white gold, set with a sugarloaf cabochon blue topaz, signed Bulgari, stamped 750, size K / 5.25, 15.5g. 

Estimate £1,500 - £2,500

A CEYLON NO HEAT PURPLE SPINEL AND DIAMOND RING in 18ct white gold, set with a cushion cut purple spinel of 10.33 carats, the shoulders set with shield cut diamonds and the band pave set with round brilliant cut diamonds, the diamonds all totalling 2

Estimate £15,000 - £20,000

A RUBY AND DIAMOND TOI ET MOI RING in yellow gold and platinum, set with a cushion cut ruby of approximately 1.00 carat and an old cut diamond of approximately 1.23 carats, accented by round brilliant cut diamonds, no assay marks, size R / 8.5, 8.4g.

Estimate £3,000 - £5,000

A THREE STONE DIAMOND RING in platinum, set with three round brilliant cut diamonds, the diamonds all totalling 1.8-2.0 carats, the shoulders set with further round cut diamonds, no assay marks, size O / 7.25, 5.0g. 

Estimate £4,000 - £6,000

A 5.45 CARAT SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of 5.45 carats, the shoulders accented by tapered baguette cut diamonds, no assay marks, size N / 6.75, 8.3g. 

Estimate £30,000 - £50,000

A PERIDOT AND DIAMOND DRESS RING in yellow gold, set with an oval cut peridot, accented by single cut diamonds, no assay marks, size Q / 8.25, 18.2g. 

Estimate £1,200 - £1,600

AN EXQUISITE BURMA NO HEAT RUBY AND DIAMOND RING in platinum, set with an oval cut ruby of 3.16 carats in a rectangular border of round brilliant cut diamonds, the shoulders set with three rows of round brilliant cut diamonds, size N / 6.7

Estimate £60,000 - £80,000

A SOLITAIRE DIAMOND RING in yellow gold and silver, set with an old cut diamond of 1.64 carats in a pinched collet setting, no assay marks, size M1/2 / 6.5, 5.6g.

Estimate £6,000 - £8,000

A HEART SHAPED DIAMOND SOLITAIRE RING in 18ct white gold, set with a heart cut diamond of approximately 4.11 carats, full British hallmarks, size L1/2 / 6, 4.7g. 

Estimate £12,000 - £16,000

A BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of 1.63 carats in a cluster of round brilliant cut diamonds, no assay marks, size L / 5.75, 3.7g. Accompanied by a facsimile gemmological report stating the ruby is

Estimate £4,000 - £6,000

TIFFANY & CO., A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 1.67 carats flanked by baguette cut diamonds, inscribed 1.67, signed Tiffany & Co., stamped Pt950, size L1/2 / 6, 7.2g. 

Estimate £7,000 - £9,000

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with a cushion cut sapphire of approximately 8.00 carats, the stepped shoulders set with single cut diamonds, French import marks, size M / 6.25, 7.3g. Accompanied by a facsimile gemmologica

Estimate £12,000 - £16,000

A FRENCH UNHEATED SAPPHIRE AND DIAMOND RING in platinum, set with a cushion cut sapphire of 4.80 carats in a border of single cut diamonds, French assay marks, size P1/2 / 8, 5.0g. Accompanied by a gemmological report stating that the sapphire shows

Estimate £10,000 - £15,000

AN ANTIQUE GEORGIAN DIAMOND AND ENAMEL MOURNING RING in yellow gold and silver, the navette face with an applied urn motif relieved in white enamel and set with rose cut diamonds, over a ground of blue guilloche enamel, in a border of old cut diamond

Estimate £4,000 - £6,000

A SOLITAIRE DIAMOND RING in yellow gold, set with a round brilliant cut diamond of 1.88 carats, the stepped shoulders set with round cut diamonds, no assay marks, size O1/2 / 7.5, 4.4g. 

Estimate £5,000 - £7,000

BOODLES, A TANZANITE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut tanzanite of 5.76 carats in a border of round brilliant cut diamonds, stamped 5.76, signed Boodles, full British hallmarks, size K / 5.25, 7.2g. 

Estimate £3,000 - £5,000

A DIAMOND CLUSTER RING in white gold, set with a round brilliant cut diamond of approximately 0.90 carats, in a cluster of further round brilliant cut diamonds, the shoulders accented by baguette cut diamonds, the diamonds all totalling 2.3-2.5 carat

Estimate £3,000 - £5,000

CARTIER, A DIAMOND LANIERES RING in 18ct white gold, set with a row of round brilliant cut diamonds, signed Cartier and numbered, stamped 750, Swiss assay mark, size L1/2 / 6, 4.1g. Accompanied by a Cartier ring box. 

Estimate £1,200 - £1,600

A FINE KUNZITE AND DIAMOND DRESS RING in 18ct yellow gold, set with an oval cut kunzite of approximately 71.00 carats, the stylised shoulders set with round brilliant cut diamonds, the diamonds all totalling 3.6-3.8 carats, no assay marks, size K / 5

Estimate £5,000 - £7,000

A TIGER'S EYE DRESS RING in yellow gold, set with an oval cabochon tiger's eye, no assay marks, size L / 5.75, 12.1g. 

Estimate £800 - £1,200

A BURMA NO HEAT SAPPHIRE RING in 18ct white gold, set with a round cut sapphire of 6.02 carats, stamped 18K, size O / 7.25, 5.8g. Accompanied by a gemmological report stating that the sapphire is of Burma (Myanmar) origin with no indicatio

Estimate £30,000 - £50,000

A SAPPHIRE AND DIAMOND THREE STONE RING in white gold, set with an oval cut sapphire of 3.20 carats between two round brilliant cut diamonds both totalling approximately 2.17 carats, no assay marks, size N / 6.75, 5.0g. 

Estimate £8,000 - £12,000

AN BURMA NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with a round faceted sapphire of 11.54 carats, the shoulders set with round brilliant cut diamonds, stamped PT950, size P / 7.75, 10.2g. Accompanied by two gemmological reports f

Estimate £50,000 - £70,000

A 4.62 CARAT SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of 4.62 carats, stamped 950, size P1/2 / 8, 4.4g. Accompanied by a facsimile GIA report stating that the diamond is S to T colour and VS1 clarity. 

Estimate £25,000 - £35,000

A SAPPHIRE, EMERALD, RUBY AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut sapphire of approximately 2.00 carats, an oval cut emerald of approximately 0.70 carats, and an oval cut ruby of 1.20 carats, accented by a scrolling border of

Estimate £1,500 - £2,500