AN AQUAMARINE AND DIAMOND DRESS RING in 18ct rose gold, set with two oval cut aquamarines in a stylised border of round brilliant cut diamonds, stamped 750, size S / 9, 4.5g. 

Estimate £1,000 - £1,500

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with an old cut diamond of 1.42 carats, full British hallmarks, size L / 5.75, 2.8g. 

Estimate £4,000 - £6,000

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.

Estimate £300 - £500

CARTIER, A DIAMOND RING in 18ct yellow gold, set with an oval cut diamond, the band accented by rows of round brilliant cut diamonds, the diamonds all totalling 1.2-1.4 carats, signed Cartier and numbered, stamped OR 750, size I1/2 / 4.5, 4.5g. Accom

Estimate £2,500 - £3,500

A GOLD BAND RING in yellow gold, the wide band with engraved detailing, no assay marks, size K1/2 / 5.5, 5.6g. 

Estimate £200 - £300

A MOONSTONE AND DIAMOND CLUSTER RING set with an oval cabochon moonstone in a cluster of old cut diamonds, no assay marks, size N / 6.75, 2.6g. 

Estimate £800 - £1,200

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set to the centre with an octagonal step cut aquamarine of 2.25 carats in a double border of round brilliant cut diamonds, the band set with further diamonds, full British hallmarks, size M1/2 / 6.5

Estimate £2,000 - £3,000

A DIAMOND FULL ETERNITY RING set all around with round brilliant cut diamonds, no assay marks, size N1/2 / 7, 3.0g.  

Estimate £400 - £600

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 2.32 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.84 carats, stamped 750, size N1/2 / 7, 3.5g. 

Estimate £1,500 - £2,500

AN EMERALD RING in 18ct white gold, set with an octagonal step cut emerald of approximately 1.80 carats, stamped 750, size P1/2 / 8, 3.0g. 

Estimate £1,500 - £2,500

A PEARL AND DIAMOND RING set with a pearl of 15.37mm accented by marquise cut diamonds, no assay marks, size O / 7.25, 8.5g. 

Estimate £800 - £1,200

AN ANTIQUE VICTORIAN OPAL AND DIAMOND RING in yellow gold, set with three cabochon opals punctuated by trios of old cut diamonds, no assay marks, size J1/2 / 5, 2.7g. 

Estimate £300 - £500

AN ANTIQUE TURQUOISE AND DIAMOND RING in yellow gold, set with an old cut diamond in a cluster of cabochon turquoise, no assay marks, size I / 4.25, 4.4g.  

Estimate £1,000 - £1,500

AN ANTIQUE SAPPHIRE AND DIAMOND RING in yellow gold, set with a row of alternating old cut diamonds and round cut sapphires, no assay marks, size L1/2 / 6, 2.2g. 

Estimate £400 - £600

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire of 2.85 carats in a cluster of round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 3.6g. Accompanied by a gemmological report stating that the

Estimate £3,000 - £5,000

AN ANTIQUE BLOODSTONE INTAGLIO SIGNET RING in gold, set with a bloodstone intaglio carved to depict a heraldic crest, no assay marks, size U1/2 / 10.25, 9.5g. 

Estimate £400 - £600

A SAPPHIRE SNAKE RING in 14ct yellow gold, designed as a snake coiled around itself, set with a round cut sapphire, stamped 585, size M1/2 / 6.5, 2.5g. 

Estimate £300 - £500

AN ANTIQUE GARNET AND PEARL RING, 19TH CENTURY in yellow gold, set with a cushion cut garnet in a cluster of pearls, no assay marks, size L1/2 / 6, 2.0g. 

Estimate £300 - £500

AN ANTIQUE PEARL AND ENAMEL RING in yellow gold, set with five pearls accented by black enamel, the reverse with a glass covered locket panel, no assay marks, size J1/2 / 5, 2.2g. 

Estimate £300 - £500

AN EGYPTIAN REVIVAL SCARAB BEETLE RING in yellow gold, set with a carved blue hardstone scarab beetle, the band of twisted wirework design, no assay marks, size M / 6, 4.2g.

Estimate £500 - £700

A COLOMBIAN EMERALD RING in 18ct yellow gold, set with a cabochon emerald of approximately 7.47 carats, stamped 750, size I1/2 / 4.5, 8.8g. With a gemmological verbal assessment stating the emerald is of Colombian origin.

Estimate £4,000 - £6,000

AN AMETHYST AND DIAMOND RING in 14ct yellow gold, set with an oval mixed cut amethyst of approximately 50.90 carats, to diamond set shoulders, stamped 585, size P / 7.75, 18.0g.

Estimate £1,000 - £1,500

A SAPPHIRE, EMERALD, RUBY AND DIAMOND RING in 18ct yellow gold, set with a square step cut emerald, oval cut ruby and sapphire, accented by round brilliant cut diamonds, stamped 750, size J1/2 / 5, 4.8g. 

Estimate £100 - £150

AN EMERALD DRESS RING in white gold, in a chain link design set with marquise cut emeralds, size J1/2 / 5, no assay marks, 13.8g. 

Estimate £800 - £1,200

A RETRO RUBY, DIAMOND AND SAPPHIRE RING in 18ct yellow gold, set with rows of square step cut rubies and round cut diamonds, accented by cabochon sapphires, stamped 750, size M / 6.25, 11.0g. 

Estimate £200 - £300

A VINTAGE RUBY, EMERALD AND DIAMOND TOI ET MOI RING in yellow gold, set with a pear cut ruby of approximately 0.58 carats and a pear cut emerald of approximately 0.40 carats, both set in borders of round brilliant cut diamonds, accented by further ro

Estimate £1,000 - £1,500

A PINK TOURMALINE AND DIAMOND CLUSTER RING in 18ct rose gold, set to the centre with an oval cut pink tourmaline of 3.13 carats, in a cluster of round brilliant cut and baguette cut diamonds, full British hallmarks, size N / 6.75, 6.1g. 

Estimate £2,000 - £3,000

AN AMETHYST AND DIAMOND CLUSTER RING in 14ct white gold, set with an oval cut amethyst of approximately 31.38 carats in a halo of round brilliant cut diamonds to a scrolled open-work basket, stamped 585, size N1/2 / 7.25, 11.55g

Estimate £1,000 - £1,500

A PINK TOURMALINE AND DIAMOND RING set with a cushion cut pink tourmaline of approximately 15.95 carats accented by round brilliant cut diamonds, no assay marks, size P1/2 / 8, 9.1g. 

Estimate £2,000 - £3,000

A TANZANITE, PINK TOURMALINE AND DIAMOND DRESS RING set with a cushion shaped tanzanite of 11.28 carats, accented by marquise cut pink tourmalines and round brilliant cut diamonds, no assay marks, size N / 6.75, 10.7g. Accompanied by a gemmological r

Estimate £2,500 - £3,500

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby in a border of round brilliant cut diamonds, to an openwork band, no assay marks, size P / 7.75, 5.8g. 

Estimate £1,000 - £1,500

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct white gold and platinum, set with a round brilliant cut diamond of approximately 1.56 carats, stamped 18ct PLAT, size L1/2 / 6, 3.2g. 

Estimate £2,000 - £3,000

A DIAMOND SET DRESS RING in 18ct white gold, pave set with round brilliant cut diamonds, the diamonds all totalling 0.58 carats, full British hallmarks, size M1/2 / 6.5, 7.8g. 

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND RING set with an oval cut emerald accented by round brilliant cut diamonds, no assay marks, Q1/2 / 8.5, 4.1g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a rectangular step cut sapphire of 1.14 carats between two tapered baguette cut diamonds, full British hallmarks, size M1/2 / 6.5, 3.5g. 

Estimate £800 - £1,200

A 5.80 CARAT SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 5.80 carats, partial British hallmarks, size L1/2 / 6, 11.3g. 

Estimate £30,000 - £40,000

A DIAMOND PANTHER RING in yellow gold, designed as a panther coiled around itself, the eyes set with round brilliant cut diamonds, no assay marks, size M / 6.25, 4.1g. 

Estimate £400 - £600

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an elongated cushion cut aquamarine of approximately 4.00 carats in a cluster of old cut diamonds, the diamonds totalling 1.0-1.5 carats, stamped 18CT, size O / 7.25, 6.6g. 

Estimate £1,200 - £1,600

AN EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut emerald in a cluster of round brilliant cut diamonds, no assay marks, size M / 6.25, 4.2g. 

Estimate £800 - £1,200

A PERIDOT AND DIAMOND CLUSTER RING in yellow gold, set with a round cut peridot in a cluster of round brilliant cut diamonds, the shoulders accented by further round brilliant cut diamonds, no assay marks, size N / 6.75, 3.3g. 

Estimate £600 - £800

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds all totalling 3.10 carats, no assay marks, size N1/2 / 7, 5.0g. 

Estimate £10,000 - £15,000

AN ART DECO SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an old cut diamond of approximately 1.50 carats in a double border of step cut sapphires and old cut diamonds, the band accented by further old cut diamonds, no assay marks, size L / 5

Estimate £5,000 - £7,000

A SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an oval cut sapphire of 4.86 carats in a meander style border of step cut sapphires and round cut diamonds, the shoulders accented by further step cut sapphires and round cut diamonds, inscribed

Estimate £3,000 - £5,000

CARRERA Y CARRERA, A DIAMOND AFRODITA RING in 18ct yellow gold, the spiralling face set with a central round brilliant cut diamond of 0.11 carats, CYC maker's mark and numbered, stamped 750, size N1/2 / 7, 18.7g.

Estimate £1,200 - £1,600

AN EMERALD AND DIAMOND SNAKE RING in 18ct yellow gold, designed as a snake coiled around itself set with round cut diamonds, round cut emeralds to the eyes, stamped 18K, size R1/2 / 9, 4.7g. 

Estimate £400 - £600

A VINTAGE DIAMOND CLUSTER RING in 18ct yellow gold and platinum, the textured band set with a cluster of round brilliant cut diamonds, stamped PLAT, full British hallmarks for London 1967, I1/2 / 4.5, 6.3g. 

Estimate £250 - £350

A RUBY AND DIAMOND GYPSY RING in 14ct yellow gold, set with an oval cut ruby between two round brilliant cut diamonds, stamped 585, size L / 5.75, 6.4g. 

Estimate £500 - £700

A VINTAGE SAPPHIRE DRESS RING in yellow gold, the square face set with a cushion cut sapphire, accented by engraved foliate designs, no assay marks, size K / 5.25, 8.1g. 

Estimate £500 - £700

AN UNHEATED COLOUR CHANGE SAPPHIRE AND DIAMOND RING in 14ct rose gold, set with an oval mixed cut sapphire of 1.14 carats in a cluster of tapered baguette and round brilliant cut diamonds, stamped 14K, size O / 7.25, 4.3g. Accompanied by a gemmologic

Estimate £800 - £1,200

AN UNHEATED SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval mixed cut sapphire of 2.04 carats in a cluster of tapered baguette cut diamonds, stamped 18K, size S1/2 / 9.5, 5.1g. Accompanied by a gemmological report stating that

Estimate £2,000 - £3,000

A VINTAGE RUBY FIVE STONE RING in 22ct yellow gold, set with a row of five graduated step cut rubies all totalling 2.5-3.0 carats, stamped 22c, size R1/2 / 9, 4.0g.

Estimate £5,000 - £7,000

AN EMERALD DRESS RING in 18ct rose gold, set with an octagonal step cut emerald of approximately 4.30 carats, stamped 18K, size N1/2 / 7, 5.8g.

Estimate £2,500 - £3,500

A FRENCH SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire of approximately 3.57 carats accented by old cut diamonds, French assay marks, size J1/2 / 5, 10.6g. 

Estimate £2,000 - £3,000

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut yellow sapphire of approximately 2.10 carats in a cluster of round brilliant cut diamonds, stamped PLAT, size O / 7.25, 4.7g. 

Estimate £1,000 - £1,500

A DIAMOND DRESS RING in 18ct yellow gold, set with five principal round brilliant cut diamonds, accented by two rows of round cut diamonds, stamped 750, size K / 5.25, 4.7g. 

Estimate £100 - £150

A BLUE TOPAZ AND AMETHYST DRESS RING in 14ct yellow gold, set with an oval cut blue topaz, accented on each side by rectangular step cut amethyst, stamped 14K, size N / 6.75, 8.0g. 

Estimate £100 - £150

A DIAMOND THREE STONE RING in 18ct white gold, set with three round brilliant cut diamonds, the diamonds all totalling 5.64 carats, inscribed 1/2.02 2/1.81, stamped 750, size O1/2 / 7.5, 6.5g. 

Estimate £5,000 - £7,000

AN AMETHYST AND DIAMOND RING in 14ct yellow gold, set with a fancy mixed cut amethyst of approximately 50.00 carats, in a border or round brilliant cut diamonds totalling 0.7-0.8 carats, to a scrolled open work basket, stamped 585, size P1/2 / 7.75,

Estimate £1,000 - £1,500

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with a central oval mixed cut sapphire of 4.50 carats in a cluster of marquise and tapered baguette cut diamonds, the diamonds all totalling 1.5-1.7 carats, stamped PLAT and 950, size K / 5.

Estimate £4,000 - £8,000

AN EMERALD AND DIAMOND RING in platinum, set with a cushion cut emerald of 6.08 carats in a border set with round brilliant cut diamonds, the band half set with further diamonds, stamped PLAT, size N1/2 / 7, 7.6g. Accompanied by a gemmological report

Estimate £4,000 - £6,000

AN AQUAMARINE AND DIAMOND RING in platinum, set with an octagonal step cut aquamarine of approximately 1.40 carats in a border of round brilliant cut diamonds, the band set with further round brilliant cut diamonds, stamped PLAT, size N / 6.75, 4.5g.

Estimate £600 - £800

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with an old European cut diamond of approximately 1.58 carats, the shoulders set with two rows of old cut diamonds, stamped platinum, size N / 6.5, 3.4g. 

Estimate £4,000 - £6,000

A DIAMOND FIVE STONE RING in platinum, set with five round brilliant cut diamonds, the diamonds all totalling 0.51 carats, full British hallmarks, size M1/2 / 6.5, 4.4g. 

Estimate £800 - £1,200

AN UNHEATED TSAVORITE GARNET AND DIAMOND RING in 18ct white gold, set with an octagonal step cut tsavorite garnet of 2.23 carats in a stylised border set with round brilliant cut diamonds, the band set with further diamonds, stamped 18K, size N / 6.7

Estimate £800 - £1,200

BULGARI, A B.ZERO 1 BANGLE in 18ct rose gold, with engraved lettering 'BVLGARI' to the sides, signed Bvlgari and numbered, stamped 750, inner circumference 18.0cm, 24.6g. Accompanied by original box and papers.

Estimate £2,500 - £3,500

A DIAMOND RING in scrolling design set with round brilliant and baguette cut diamonds, no assay marks, size J / 4.75, 4.2g. 

Estimate £300 - £500

A DIAMOND HALF ETERNITY RING in 18ct rose gold, set with a row of seven round brilliant cut diamonds, the diamonds totalling 1.01 carats, inscribed 7/1.01ct, stamped 750, size N1/2 / 7, 4.0g. 

Estimate £600 - £800

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut aquamarine of approximately 2.50 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 1.6-1.8 carats, stamped 18CT, size O / 7.25, 4.6g. 

Estimate £1,500 - £2,500

SCHILLING, A DIAMOND BAND RING in 18ct yellow and white gold, set to the centre with an old European cut diamond of 3.06 carats between three rows of pave set round brilliant cut diamonds, accented by two further rows of carre cut diamonds, the diamo

Estimate £10,000 - £12,000

A RETRO SAPPHIRE AND DIAMOND RING in yellow gold, set with an oval cabochon sapphire, accented by three rows of old cut diamonds, no assay marks, size R / 8.75, 13.1g. 

Estimate £600 - £800

A RUBY AND DIAMOND THREE STONE RING in 18ct yellow gold and platinum, set with an old cushion cut diamond of approximately 0.25 carats between two cushion cut rubies, stamped 18ct PLAT, size L / 5.75, 1.9g. 

Estimate £500 - £700

AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut sapphire and two round cut sapphires accented by trios of old cut diamonds, stamped 18CT, size O1/2 / 7.5, 3.4g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire in a cluster of old cut diamonds, no assay marks, size O1/2 / 7.5, 3.0g. 

Estimate £800 - £1,200

ALBION, A BLUE ZIRCON AND DIAMOND RING in 18ct white gold, set with a round cut zircon between baguette cut diamonds, signed Albion, full British hallmarks, size M / 6.25, 3.4g. 

Estimate £300 - £500

A JADEITE JADE AND DIAMOND RING in platinum, set with a cabochon jadeite jade accented by round brilliant and tapered baguette cut diamonds, stamped Pt900, size K1/2 / 5.5, 7.7g. 

Estimate £800 - £1,200

A DIAMOND CLUSTER RING in 18ct white gold, set with a cluster of old cut diamonds, stamped 18CT, size M1/2 / 6.5, 2.9g. 

Estimate £600 - £800

AN EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with an octagonal step cut emerald of approximately 0.40 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, size L / 6, 4.1g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND NAVETTE RING in 18ct white gold and platinum, the navette face set with a cushion cut sapphire in a border of old cut diamonds, each shoulder set with cushion cut sapphires, stamped 18ct PLAT, size L / 5.75, 3.7g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND DRESS RING set with a round cut sapphire of approximately 2.48 carats between two old cut diamonds both totalling 0.6-0.7 carats, the band accented by step cut sapphires, no assay marks, size K1/2 / 5.5, 4.1g. 

Estimate £3,000 - £5,000

A VINTAGE AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut aquamarine in a cluster of round brilliant cut diamonds, full British hallmarks for London 1972, size O1/2 / 7.5, 4.4g.

Estimate £600 - £800

AN ANTIQUE DIAMOND POISON RING in yellow gold, the oval face engraved in foliate design opening to reveal a hidden compartment, engraved 'CH' to the reverse, accented by rose cut diamonds, no assay marks, O1/2 / 7.5, 4.0g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND RING in yellow gold, set with three rose cut diamonds, no assay marks, size N / 6.75, 4.8g. 

Estimate £150 - £250

AN ANTIQUE GEORGIAN AGATE, ENAMEL AND DIAMOND MOURNING RING in yellow gold, the black enamel face set with a banded agate carved to depict a forget-me-not flower set with a rose cut diamond, the band in black enamel, inscribed 'M.R. MACDONELL Ob. 22

Estimate £500 - £700

AN AQUAMARINE AND DIAMOND RING in 18ct white gold, set with an oval cut aquamarine of approximately 4.16 carats accented by round brilliant cut diamonds, stamped 750, size P / 7.75, 9.2g. 

Estimate £1,000 - £1,500

AN EGYPTIAN REVIVAL SCARAB BEETLE RING in 18ct yellow gold, set with a carved blue hardstone scarab beetle, stamped 750, size G / 3.25, 3.3g. 

Estimate £500 - £700

A DIAMOND AND RUBY BAT RING in blackened gold, designed as a bat, set with round cut diamonds and round cut ruby eyes, inscribed VP MMXIII, size M / 6.26, 2.4g. 

Estimate £600 - £800

AN EMERALD AND DIAMOND RING in 18ct white gold, set with a pear cut emerald of approximately 1.44 carats in a border of round brilliant cut diamonds, the band accented by further round brilliant cut diamonds, full British hallmarks, size O / 7.25, 4.

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set to the centre with an oval cut sapphire of 2.17 carats within a double cluster of round brilliant cut diamonds, the band set with further diamonds, full British hallmarks, size M1/2 / 6.5, 10.8g. 

Estimate £3,000 - £5,000

A DIAMOND RING in crossover design, set throughout with round brilliant cut diamonds, marked indistinctly, size N / 6.75, 12.8g. 

Estimate £500 - £700

A RUBY AND DIAMOND RING in 18ct white gold, set with an oval cut ruby of 0.78 carats, the band accented by round cut diamonds, stamped 750, size K / 5.25, 3.2g. 

Estimate £500 - £700

A PINK SAPPHIRE AND DIAMOND CLUSTER RING in 18ct rose gold, set to the centre with a cushion cut pink sapphire of 1.60 carats, to a border of diamonds to diamond set shoulders, full British hallmarks, size M / 6.25, 4.5g. 

Estimate £1,500 - £2,500

A 2.10 CARAT SOLITAIRE DIAMOND RING in 18ct white gold, set with a round brilliant cut diamond of 2.10 carats, partial British hallmarks, stamped 750, size M / 6.25, 4.9g. 

Estimate £5,000 - £7,000

A TANZANITE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut tanzanite of approximately 5.60 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 1.2-1.3 carats, stamped 18k 750, size Q1/2 / 7.0g. 

Estimate £2,500 - £3,500

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut yellow sapphire of approximately 2.50 carats in a cluster of round brilliant cut diamonds, further round brilliant diamonds set to the shoulders, the diamonds totalling 1.1-

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND THREE STONE RING in 18ct white and yellow gold, set with an oval cut emerald of approximately 2.44 carats between two round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 3.5g. 

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 2.40 carats in a double border of round brilliant cut diamonds, stamped 750, M1/2 / 6.5, 5.7g. 

Estimate £1,000 - £1,500

A DIAMOND ETERNITY RING set all around with round cut diamonds, no assay marks, size M / 6.25, 1.9g. 

Estimate £400 - £600

A 5.15 CARAT H COLOUR, VVS2 DIAMOND ENGAGEMENT RING in 18ct white gold, set with an emerald cut diamond of 5.15 carats, accented by trios of round brilliant and tapering baguette cut diamonds, full British hallmarks, size O / 7, 5.9g. Accompanied by

Estimate £80,000 - £120,000

A DIAMOND SOLITAIRE RING in platinum, set to the centre with a princess cut diamond of 0.64 carats, to an octagonal surround of round brilliant cut diamonds and diamond set shoulders, full British hallmarks, size M / 6.25, 4.6g. Accompanied by a gemm

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with a cushion cut emerald of 1.40 carats to a border of round brilliant cut diamonds to diamond set shoulders, full British hallmarks, size L1/2 / 6, 8.5g. 

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut emerald of approximately 0.86 carats in a border of round brilliant cut diamonds, stamped 750, size N / 6.75, 3.7g. 

Estimate £1,000 - £1,500

A SOLITAIRE DIAMOND RING in 14ct white gold, set with a round brilliant cut diamond of approximately 0.60 carats, partial British hallmarks, size L / 5.75, 3.2g. 

Estimate £1,000 - £1,500

AN ANTIQUE CORAL AND DIAMOND RING, EARLY 20TH CENTURY in 14ct yellow gold, the oval face set with a cabochon coral and an old cut diamond accented by further old cut diamonds, partial British hallmarks, size N1/2 / 3.9g.

Estimate £1,500 - £2,500

AN ANTIQUE PAINTED PORTRAIT MINIATURE RING, 19TH CENTURY in yellow gold, the oval face with a painted miniature of a soldier, no assay marks, size M / 6.25, 3.8g. 

Estimate £800 - £1,200

AN ANTIQUE CARNELIAN INTAGLIO RING in yellow gold, set with an oval carnelian intaglio carved to depict a man, accented by beaded decoration and gazelles, no assay marks, size Q / 8.25, 8.7g.

Estimate £800 - £1,200

AN ANTIQUE NAVETTE DIAMOND RING in 18ct yellow gold and silver, set with old mine cut diamonds totalling 0.8-1.0 carats, full British hallmarks for London 1904, size M1/2 / 6.5, 4.1g.

Estimate £250 - £350

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an oval cut sapphire of approximately 0.76 carats between two round brilliant cut diamonds, full British hallmarks, size L / 5.75, 2.7g. 

Estimate £600 - £800