A RUBY AND DIAMOND DRESS RING in platinum, set with an

AN ART DECO RUBY AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, the rectangular face set with a step cut ruby accented by single cut diamonds, stamped 18ct Plat, size M /

Five gold gem-set rings. To include an early 20th century platinum and 18ct gold single-cut diamond three-stone crossover ring, an early 20th century 18ct gold and platinum synthetic ruby dress ring,

AN ART DECO SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an emerald cut blue sapphire of 5.88 carats, between stepped shoulders set with baguette cut diamonds, stamped Platinum, size N / 6.75

AN ART DECO DIAMOND DRESS RING in platinum, set with an old cut diamond of 2.20 carats, between pairs of old cut diamonds, French assay marks for platinum, size L / 5.5, 5.8g.

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 fu

A BURMA NO HEAT RUBY AND DIAMOND DRESS RING set with a cushion cut ruby of 1.20 carats, within a bombe style mount set allover with rose cut diamonds, unmarked, size K / 5.25, 6.1g. The gemological pr

A SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an emerald cut diamond of approximately 0.40 carats, accented by French cut sapphires and round brilliant cut diamonds, further round brilliant

A PINK TOURMALINE AND DIAMOND DRESS RING in platinum, set with an oval-shaped fancy cut pink tourmaline of 13.95 carats, the trefoil shoulders and shank accented with round cut diamonds, no assay mark

A BROWN DIAMOND DRESS RING in platinum, set with a round cut brown diamond between two pear cut brown diamonds, in a border of round brilliant cut white diamonds, the diamonds all totalling 1.5-1.7 ca

A SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an oval cut sapphire within two concentric rows of round brilliant cut diamonds, each shoulder set with a trio of round brilliant cut diamonds,

AN EMERALD AND DIAMOND DRESS RING in platinum, set with an emerald cut emerald of 0.37 carats between trios of old cut diamonds, stamped PLAT, size L / 5.75, 2.7g.

EMERALD AND DIAMOND DRESS RING in platinum, set with an emerald cut emerald in a cluster of old cut diamonds, stamped 950, size O / 7, 2.70g.

AN OPAL AND DIAMOND DRESS RING in platinum, set with two cabochon opals and two old cut diamonds, the diamond both totalling 0.4-0.5 carats, stamped PT, size M / 6, 3.6g.

A SOLITAIRE DIAMOND DRESS RING in platinum, set with a round cut diamond within a tapering band, full British hallmarks, size M / 6, 4.1g.

NO RESERVE - AN AMETHYST AND DIAMOND DRESS RING in platinum, set with an oval cut amethyst accented by four round brilliant cut diamonds, stamped PT900, size L1/2 / 6, 4.7g.

RUBY AND DIAMOND DRESS RING, set with a larger diamond to the center, flanked with rubies, totalling approx. 1.20 ct. Size M1/2. 5.1 grams.

RUBY AND DIAMOND DRESS RING, set with 3 rubies totalling approx. 0.59 ct. surrounded with diamonds totalling approx. 0.16 ct. Size M. 3.4 grams.

5-STONE RUBY AND DIAMOND DRESS RING, Set with 2 rubies, totalling approx. 0.42 ct. Flanked with 3 diamonds totalling approx. 0.35 ct. Size L 1/2. 3.3 grams.

NO RESERVE, 5-STONE RUBY AND DIAMOND DRESS RING, Set with 2 rubies, totalling approx. 0.42 ct. Flanked with 3 diamonds totalling approx. 0.35 ct. Size L 1/2. 3.3 grams.

AN UNHEATED RUBY AND DIAMOND RING in platinum, set with a cushion cut ruby of 2.54 carats accented by round brilliant and baguette cut diamonds, with further round brilliant cut diamonds to the band,

CARTIER, A STAR RUBY AND DIAMOND RING in platinum, set with a cabochon star ruby of approximately 76.03 carats in a border of round brilliant cut diamonds, signed Cartier and numbered, stamped Pt, siz

AN UNHEATED RUBY AND DIAMOND RING in platinum, set with a cushion cut ruby of 1.03 carats, the marquise face set with old cut and single cut diamonds, stamped PLAT, size L / 5, 5.6g. Accompanied by a

A RUBY AND DIAMOND RING in platinum, set with an oval cut ruby of 0.77 carats, accented by French cut rubies within an openwork border set with single cut diamonds, with further diamonds set to the ta

A RUBY AND DIAMOND RING in platinum, set with an oval cut ruby accented by round brilliant cut diamonds and step cut rubies, stamped PLAT, size M / 6, 4.9g.