A YELLOW SAPPHIRE AND DIAMOND RING in platinum, set

AN UNHEATED YELLOW SAPPHIRE AND DIAMOND RING in platinum, set with a cushion cut yellow sapphire of 9.43 carats accented by old cut diamonds, stamped PLAT, size O / 7, 5.9g. Accompanied by a gemmologi

A YELLOW SAPPHIRE AND DIAMOND RING in platinum, set with an octagonal mixed cut of approximately 4.00 carats, the stepped shoulders set with round brilliant cut diamonds, stamped PLAT, size O / 7, 4.4

A YELLOW SAPPHIRE AND DIAMOND RING in platinum, set with an emerald cut yellow sapphire of 2.96 carats between trios of round cut diamonds, with further step cut diamonds either side, French assay mar

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

18ct yellow gold sapphire & diamond ring set in platinum. Size O, weight 3.0g.

LADY'S YELLOW SAPPHIRE & DIAMOND, PLATINUM BAND RING :Set with: 1 emerald cut natural golden sapphire, 2.80 carats. Stone dimensions 9.9 x 7.9 x 3.3 mm. 6 bullet shape step-cut diamonds, 0.52 carats.

An 18K yellow gold, platinum, yellow sapphire, and diamond ring, Boris LeBeau designed as a tapering cigar band in eighteen karat yellow gold and platinum, centering a bezel set cushion-cut yellow sap

Platinum, Gold, Yellow Sapphire, and Diamond Ring, Francebezel set with one round cut yellow sapphire (9.63 x 8.6 x 6.2mm) weighing approximately 3.98 carats and with a conforming surround of (18) bea

AN ART DECO SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold and platinum, set with a cushion cut blue sapphire of 0.93 carats, within a border of old cut diamonds, stamped Pt 18ct, size M / 6, 3.1

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

NO RESERVE - A PINK SAPPHIRE AND DIAMOND THREE STONE RING in yellow gold and platinum, set with an oval cut pink sapphire of 1.01 carats, between two round brilliant cut diamonds, stamped PLAT, size P

centered with round brilliant cut yellow sapphire weighing approximately 2.35 carats bezel set in yellow gold and with a textured platinum tapered shank accented to the top and bottom with (52) bead s

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold and platinum, the circular face set with pattern of step cut sapphires and round cut diamonds, further diamonds accenting the band, stamped 18ct PLAT, s

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold and platinum, the circular face set with step cut sapphires and round cut diamonds, further diamonds accenting the band, stamped 18ct PLAT, size N / 7,

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct yellow gold and platinum, set with a square step cut blue sapphire between two round cut diamonds, stamped Plat 18ct, size N / 6.5, 2.1g.

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

AN ART DECO DIAMOND AND SAPPHIRE DRESS RING in yellow gold and platinum, of target design, set with a cluster of old European cut diamonds, within a border of calibre cut blue sapphires, with further

A SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1940 in 18ct yellow gold and platinum, set with a step cut blue sapphire within a border of round cut diamonds, stamped 18ct Pt, size K / 5.25, 3.9g.

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

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

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

Set with 5 round platinum-set diamonds and sapphires approx. 0.34 carats, in yellow gold, stamped 18K Plat, size 6, 5.2gms.

This is an antique 14K yellow gold ring band with platinum filigree face set with two sapphires flanking an Old European cut diamond. The diamond clarity is VS and the color is GH. The ring is a size