AN UNHEATED VIOLET SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a central oval cut

AN UNHEATED VIOLET SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a central oval cut violet sapphire of 2.02 carats, within a navette border set with clusters of marquise and round brill

A SAPPHIRE, DIAMOND AND RUBY DRESS RING in 18ct white gold, set with a round cut sapphire, a single and old cut diamond and an oval cut ruby, stamped 18ct, size R / 8.5, 4.2g.

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 SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut sapphire of 3.13 carats in a double border of round brilliant cut diamonds, the diamonds all totalling 1.0-1.1 carats, stamped 18K,

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of approximately 4.11 carats in a cluster of round brilliant cut diamonds all totalling 1.4-1.6 carats, stamped 18

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

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with an oval cut sapphire of approximately 1.70 carats in a border of round brilliant, old and single cut diamonds, the stepped shou

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.

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,

NO RESERVE - A VINTAGE AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, the tapering band set with an oval cut aquamarine accented by round cut diamonds within star designs, stamped 750, size N /

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with two rows of pear cut sapphires accented by a border of round brilliant cut diamonds, British hallmarks for 18ct gold, size L / 5.5, 6.4g.

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

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, the oval face set with four marquise cut blue sapphires accented by single cut diamonds, full British hallmarks, size J / 4.5, 4.8g. Guaranteed U

Crafted in 14K white gold; set with a 10.85-carat oval-shaped unheated sapphire; surrounded by round brilliant-cut diamonds, weighing a total of 2.34 carats (diamond weight is engraved), most with H-I

18kt White Gold ring set with 2.43ct Oval cut Yellow Sapphire in central position flanked by 1.25cts twt. of Round Brilliant and Baguette cut Diamonds on the band. Marked 750, MKD025. Ring size 6 3/4.

18 kt. White Gold, Green Sapphire and Diamond Ring, 2 central prong set oval shape and square shape mixed cut sapphires, total wt. approx. 3.73 cts.; bezels and shoulders set with 48 prong set round b

Two diamond and gem-set rings. To include an oval-shape ruby and single-cut diamond dress ring, together with an 18ct gold calibre-cut sapphire and single-cut diamond dress ring. Estimated total diamo

An 18ct gold sapphire and diamond dress ring. The oval-shape sapphire, within a pave-set old-cut diamond surround, to the bifurcated shoulders. Estimated total diamond weight 1.50cts. Hallmarks for Bi

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

ELIZABETH GAGE, A PRASIOLITE AND DIAMOND HELIOTROPE RING in 18ct white gold, set with an oval cut prasiolite accented by round brilliant cut diamonds, the band decorated by oak leaf motifs, signed GAG

A BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of 0.87 carats in a cluster of round brilliant cut diamonds totalling 1.04 carats, stamped 18CT, size N / 6.

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 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