A mid 20th century platinum, Kashmir sapphire and diamond ring, by Boucheron.With report 5783-3917,

A mid 20th century platinum, sapphire and diamond cluster ring. The rectangular-shape sapphire, within a circular-cut diamond scalloped surround, to the openwork gallery. Estimated total diamond weigh

Two mid 20th century 18ct gold and platinum, diamond and sapphire rings. The first designed as a circular-shape sapphire with single-cut diamond surround, the second designed as a circular-cut diamond

A mid 20th century sapphire and diamond cluster ring. The rectangular-shape sapphire, within an old-cut diamond surround, to the grooved shoulders and plain band. Estimated total diamond weight 0.35ct

A gentleman's early 20th century platinum natural colour change sapphire signet ring. The square-shape natural colour change sapphire, to the tapered band. Accompanied by report number 20024611, dated

Art Deco Kashmir sapphire, diamond and platinum ring Centering (1) oval-cut Kashmir sapphire, weighing approximately 2.30 cts., accompanied by an AGL Report #1092955, Dated June 21, 2018, stating Kash

14k gold cocktail ring with marquise cut emerald, sapphire and peridot stones, diamond accents, size 5, stamped 14k, weighs 8.0 gr/5.1 dwt complete, mid 20th C

METAL: Platinum. GEMSTONES: Diamonds approx. 0.60ctw. MEASUREMENTS: Ring size 4, top is 11mm. TESTED: Plat. WEIGHT: 6.1 grams.Gemstones have not been graded for color and clarity, and tested for clari

DIAMOND SINGLE-STONE RING, MID 20TH CENTURY The fancy octagonal-cut diamond, weighing 8.25 carats, in a raised setting, the shoulders and quatrefoil gallery set with old brilliant and single-cut diamo

RUBY AND DIAMOND CLUSTER RING, MID 20TH CENTURY The oval-cut ruby, weighing 2.51 carats, within a surround of brilliant-cut diamonds, between baguette-cut diamond-set shoulders, ring size N Footnotes:

Fine Pair of Art Moderne Diamond Ear Clips mid-20th century, platinum, each with a cluster of prong-set round brilliant diamonds above a spray of channel-set baguette diamond rays, with an approximate

Platinum bypass ring by Bulgari featuring a 5.10 carat pear shape unheated Kashmir blue sapphire and a pear shape diamond weighing 2.50 carats along with tapered baguette diamonds weighing approx. 1.0

A FINE ART DECO CEYLON NO HEAT SAPPHIRE, DIAMOND AND PEARL NECKLACE, EARLY 20TH CENTURY in platinum and yellow gold, set throughout with nine oval cut blue sapphires all totalling approximately 16.90

PAIR OF DIAMOND AND SAPPHIRE TARGET CLUSTER EARRINGS, MID 20TH CENTURY The old brilliant-cut diamonds in rubover settings, within a surround of calibré-cut sapphires, diamonds approximately 1.40

Platinum, Sapphire and Diamond Ring. Prong-set with a cushion-shaped sapphire weighing 4.07 carats, flanked by round diamonds, size 7. Accompanied by GIA report no. 2203365353

View a video of this lot: Click HereCrafted in platinum; set with a cushion faceted sapphire, weighing approximately 3.25 carats; accented by round brilliant and baguette cut diamonds

Platinum mid-century ring featuring a well cut and proportioned round brilliant cut diamond set in four prongs, weighing approx. 2.15 cts, I-J color, VS clarity, with two tapered baguettes, 6.5 sz, 5.

A DAVID WEBB 18K YELLOW GOLD, PLATINUM, DIAMOND, AND CHRYSOPRASE RING, AMERICAN, 20TH CENTURY, the green oval cabochon chrysoprase weighing approximately 33.75 carats is set within platinum mounted

Set with a cushion-shaped Kashmir sapphire weighing 6.76 carats, surrounded by 8 circular-cut diamonds, diamonds weighing 6.07 carats in total, mounted in platinum, ring size 6Gübelin, 2022, report

DIAMOND AND SAPPHIRE CLUSTER RING, EARLY 20TH CENTURY The central cushion-shaped diamond, weighing 1.65 carats, within borders of calibré-cut sapphires and single-cut diamonds, ring size Q Footno

A Burmese sapphire and diamond cluster ring. The early 20th century ovoid-shape Burmese sapphire, weighing approximately 4.50cts, and old-cut diamond cluster, to the later lower mount and replacement

Solitaire & Band GIA Certified 2.58ct. Natural No Heat Blue Sapphire ring. Report: 2201133407 Oval cut: 8.94 X 7.05 X 4.53mm Transparent, Blue 1.20ct. natural Baguette diamonds G color, Vs-2 clarity.

Sapphire, diamond and platinum ring featuring (1) cushion-cut sapphire, weighing approximately 4.46 cts., accompanied by a GIA Gemological Report #6177440660, dated January 20, 2016, stating Natural S

Platinum ring with a pear brilliant cut diamond comes with a GIA diamond report from 2018 stating the pear diamond is 4.1 carats, VS2 clarity, G color. It is prong set in a platinum fingermate hinged

weighing approx. 10.34 carats, with GIA report: 2231115093; ring size 7 3/4;