A FANCY COLOUR DIAMOND DRESS RING in 18ct white gold, set with a cushion cut blue diamond of 1.01

A FANCY COLOUR DIAMOND DRESS RING in 18ct white gold, set with a cushion cut blue diamond of 1.01 carats in a border of round brilliant cut pink diamonds, and a cushion cut yellow diamond of 1.26 cara

A BURMA NO HEAT RUBY AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut ruby of 1.02 carats and a cushion cut diamond, within concentric borders of round cut diamonds and round cut rubi

AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut aquamarine of 10.74 carats, accented by two pear shaped rose cut diamonds, within borders of round cut diamonds, stamped

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum and 18ct white gold, set with a cushion cut blue sapphire of 4.17 carats, within a border of round cut diamonds, the diamonds all totalling 2.2-2

AN ART DECO SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold and platinum, set with a cushion cut blue sapphire of 0.93 carats, within a border of old cut diamonds, stamped Pt 18ct, size M / 6, 3.1

AN ANTIQUE VICTORIAN SAPPHIRE AND DIAMOND DRESS RING, 1899 in 18ct yellow gold, set with a trio of cushion cut blue sapphires within borders of rose cut diamonds, full British hallmarks for Chester 18

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with a trio of cushion and round cut blue sapphires within borders of old cut diamonds, stamped 18ct, size L / 5.75, 3.7g.

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING, 1913 in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires punctuated by two old cut diamonds, full British hallmarks for Birmingham

A COLOUR CHANGE SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a central cushion cut sapphire of 5.13 carats, encircled by a border of single cut diamonds, later British import marks,

A SAPPHIRE AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires, accented by pairs of old cut diamonds, stamped 18ct, size O / 7.25,

Fabulous Modern 18ct white gold textured shank sapphire and diamond dress ring, set with 2 oval cut dark blue sapphires total weight of sapphires 2.22ct, and 20 round brilliant cut diamonds, total wei

A DIAMOND DRESS RING in 18ct white gold, set with four baguette cut diamonds, accented by pave set round brilliant cut diamonds, the diamonds all totalling 2.47 carats, partial British hallmarks, size

A SOLITAIRE DIAMOND DRESS RING in 18ct white gold, set with an old cut diamond of 0.43 carats, unmarked, size N / 6.5, 3.5g.

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct white gold, set with a marquise cut diamond of 1.01 carats, British hallmarks for 18ct gold, size M / 6, 3.3g.

A DIAMOND DRESS RING in 18ct yellow and white gold, set with an emerald cut diamond of 1.66 carats within a border of round cut and tapering baguette cut diamonds, the diamonds all totalling 2.9-3.1 c

A PEARL AND DIAMOND DRESS RING in 18ct white gold, set with a pearl of 14.1mm, between round cut diamonds in the shoulders, stamped 750, size M / 6.25, 6.2g.

AN OPAL AND DIAMOND DRESS RING in 18ct white gold, set with a pear shaped cabochon opal within a twisted mount, accented by round cut diamonds, stamped 18kt, size Q / 8, 8.6g.

A DIAMOND DRESS RING in 18ct white gold, set with a cluster of step cut and round cut diamonds, with further diamonds to the band, stamped 750, size P / 8, 3.8g.

A CHRYSOBERYL CAT'S EYE AND DIAMOND DRESS RING in 18ct white gold, set with a row of six cat's eye chrysoberyls between rows of round cut diamonds, stamped 18ct, size L / 6, 3.2g.

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut sapphire of 2.52 carats between two cushion cut diamonds both totalling 2.0-2.1 carats, stamped 18ct, size O / 7, 4.6g.

AN UNHEATED RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 1.87 carats, accented by carrie and round brilliant cut diamonds totalling 1.90 carats, stamped 750, size N / 7, 7.

AN OPAL AND DIAMOND DRESS RING in 18ct yellow and white gold, set with an oval cabochon opal accented by round brilliant and princess cut diamonds, the diamonds all totalling 1.2-1.4 carats, British h

AN EMERALD AND DIAMOND RING in 18ct white gold, set with a cushion cut emerald of 8.35 carats, in a double border of round brilliant cut diamonds, accented by trios of marquise cut diamonds, the bifur

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with two round cut sapphires accented by six marquise cut diamonds, the sapphires both totalling 2.40 carats, the diamonds all totalling 1.50