A RUBY, SAPPHIRE AND DIAMOND DRESS RING Of crossover design, set with an oval-shaped sapphire and r

SAPPHIRE AND DIAMOND RING Of plaque design set with cushion-shaped and oval-cut sapphires and old brilliant-cut diamonds, ring size approx. I1⁄2 For further information on this lot please visit

Set with an oval-shaped sapphire cabochon weighing 7.75 carats, surrounded with mystery-set calibré-cut rubies, accented with pear-shaped diamonds, diamonds weighing approximately 2 carats, mounted

A SAPPHIRE AND DIAMOND DRESS RING set with an oval cut sapphire of 0.55 carats in a stylised cross shaped border of french cut sapphires and single cut diamonds, no assay marks, size N / 6.75, 4.2g.

TIFFANY & CO., JEAN SCHLUMBERGER, A STAR SAPPHIRE AND DIAMOND DRESS RING The oval cabochon star sapphire estimated to weigh between 55 to 60 carats, to crossover pavé set diamond leaf shoulders, ap

A diamond and gem-set dress ring. The oval emerald, ruby and sapphire cabochon collet curved line, to the pave-set diamond sides and tapered band. Estimated total diamond weight 0.10ct. Ring size I. W

GEM-SET AND DIAMOND DRESS RING Of bombé design, set with brilliant-cut diamonds and circular-cut sapphires, rubies and emeralds, ring size approx. Q For further information on this lot please vis

Two gem-set rings. To include an oval-shape sapphire and old-cut diamond dress ring, together with a 9ct gold synthetic ruby and colourless gem-set eternity ring. One with hallmarks for Birmingham, 19

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.

A multi gem set dress ring, set with three flower head clusters of pear shaped sapphires, yellow sapphires and rubies with circular cut emerald and brilliant cut diamond centres, amongst trailing bord

Handmade yellow and white gold ring, classic (3) stone design. Center stone is a natural sapphire, oval shaped, medium blue color. Approximate weight by measurement formula is 2.78ct. Set on each side

THREE GEM-SET RINGS, CIRCA 1890 1st: Set with a row of graduated cushion-shaped diamonds, 2nd: The cushion-shaped sapphire within a similarly-shaped diamond surround, 3rd: Of crossover design, set wit

A gem-set dress ring Collet-set with an oval cabochon sapphire within a raised mount, set with pairs of cabochon emeralds and rubies and bands of brilliant-cut diamonds (Ring size: N)

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

Gold and Gem-Set Stackable Ringsin a crossover and stackable design, one with channel set square cut emeralds, one with rubies, and one with sapphires and with bezel set full cut round diamond melee (

Each a shield-shaped design with central oval ruby cabochon, graduated oval sapphire and emerald cabochons, densely set with RBC diamonds, approx. 3.45 cts. TW. throughout and enamel accents. 18k. Sta

TWO GEM-SET RINGS 1st: The navette-shaped plaque, pavé-set with cushion-shaped diamonds, centrally-set with a circular-cut ruby, 2nd: The oval-cut sapphire within a brilliant-cut diamond surround

A SAPPHIRE AND DIAMOND DRESS RING, the oval-shaped sapphire within a brilliant-cut diamond surround and similarly-cut diamond shoulders, mounted in 14K gold, ring size J½

A SAPPHIRE AND DIAMOND DRESS RING, the central oval-shaped sapphire weighing approx. 15.00cts within a rose-cut diamond surround, mounted in gold, ring size P

A SAPPHIRE AND DIAMOND RING, Of sculptural design, the oval-shaped sapphire weighing 8.27cts in an eight-claw setting, within four brilliant-cut diamond shoulders to a bifurcated hoop, mounted in 18K

A SAPPHIRE AND DIAMOND RING in crossover design, set with baguette cut sapphires totalling 0.50 carats, and baguette cut diamonds totalling 0.50 carats, stamped 18k, size N / 6, 5.3g.

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,

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 three-stone ring claw-set with an oval-shaped sapphire and two round brilliant-cut diamonds, to a plain band, unmarked(Ring size: N)

Ceylon sapphire and diamond ring set in platinum, with oval shaped blue Sri Lanka sapphire weighing 3.85 total carats and oval shaped diamonds weighing approximately 0.36 total carats. Marked 'PT900',