A BURMA NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cabochon sapphire of

A BURMA NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cabochon sapphire of 7.44 carats in a double border of old cut diamonds, the diamonds all totalling 1.4-1.5 carats, full

A BURMA NO HEAT CABOCHON SAPPHIRE AND DIAMOND CLUSTER RING, set with an oval cabochon sapphire of 16.06 carats surrounded by round cut diamonds, size O / 7, 19.2g. Accompanied by a gemmological report

AN ANTIQUE BURMA NO HEAT PINK SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold and silver, set with an oval cut pink sapphire of 1.36 carats in a cluster of old cut diamonds, on a bifurcated band, no

A FINE BURMA NO HEAT SAPPHIRE AND DIAMOND RING set with a sugarloaf cabochon sapphire of 2.44 carats, between two baguette cut diamonds of 0.54 and 0.52 carats, accented by a border of single cut diam

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut blue sapphire of 3.39 carats in a cluster of round brilliant cut diamonds, no assay marks, size M / 6, 4.5g. Accompanied by a ge

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut yellow sapphire of 2.50 carats in a cluster of round brilliant cut diamonds, further diamonds accenting the shoulders all t

SAPPHIRE AND DIAMOND CLUSTER RING, in platinum. Set with a central oval blue sapphire of 1.85 ct. Surrounded with diamonds totalling approx. 0.48 ct. Size O. 3.5 grams.

SAPPHIRE AND DIAMOND CLUSTER RING, in platinum. Set with a central oval blue sapphire of 1.85 ct. Surrounded with diamonds totalling approx. 0.48 ct. Size O. 3.5 grams.

SAPPHIRE AND DIAMOND CLUSTER RING, in platinum. Set with a central oval blue sapphire of 1.85 ct. Surrounded with diamonds totalling approx. 0.48 ct. Size O. 3.5 grams.

NO RESERVE - A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in yellow gold and silver, set with an oval cabochon sapphire of 9.00 carats in a border of old cut diamonds, Austrian assay marks, size M / 6,

A SAPPHIRE AND DIAMOND CLUSTER RING in high carat yellow gold, set with an oval cabochon sapphire of 8.78 carats encircled by round cut diamonds 1.10-1.40 carats, unmarked, size P / 8, 8.7g.

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with an oval cut sapphire, in a halo of old mine cut diamonds, to stylised shoulders, stamped with maker's mark and 18CT & PLA

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with an oval cut blue sapphire of 1.36 carats within a border of round cut diamonds, with further diamonds set to the shoulder

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut sapphire within a halo of round cut diamonds, stamped 18ct Plat, size N / 6.5, 2

SAPPHIRE AND DIAMOND CLUSTER RING, in 18 ct. gold and platinum. Set with a central cabochon cut blue sapphire, surrounded with diamonds. Size J 1/2. 2 grams.

A SAPPHIRE AND DIAMOND CLUSTER DRESS RING in 18ct yellow gold and platinum, set with a round cabochon blue sapphire of 0.97 carats within a border of old cut diamonds, stamped 18ct Plat, size L1/2 / 6

View a video of this lot: Click HereCrafted in 18K yellow gold and platinum; set with an oval cabochon sapphire, weighing approximately 5.46 carats; accented by marquise and round fac

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

Art Deco Platinum Ring set with an Oval Natural Cabochon Burma Ruby No Heat weighing 4.0 carats. Along with Baguette and Single cut Diamonds weighing Approx. 0.90 carats. Top measurements: 0.75 x 0.65

A BURMA NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of 4.40 carats within a cluster of round cut diamonds, no assay marks, size M / 6, 6.3g. Accompanied by two gemmological repor

Ladies vintage diamond and star sapphire ring. Features an oval blue star sapphire cabochon with three round cut and prong set diamonds set around the 9mm x 7.5mm x 7.25mm cabochon. Size 6. Weighs 4.7

Platinum ring featuring a natural oval cut sapphire originating from Burma with no evidence of heat treatment, weighing 3.58 cts and measuring 10.37 x 8.45 x 4.36 mm, with GIA certification #217582307

Art Deco period platinum ring, brightly polished and engraved, featuring centered bezel set blue sapphire high dome oval cabochon, weighing approx. 3.30 carats, further adorned with 22 old European an

Four gem set rings, Edwardian oval plaque ring with diamond, 18 ct and platinum, sapphire and diamond ring, pearl and garnet cluster ring, paste set ring and a pair of ear studs , all 9 ct