A SAPPHIRE AND DIAMOND HALO RING in platinum, set with a round cut sapphire of approximately 1.80

Platinum, Star Sapphire, and Diamond Ringthe round cabochon star sapphire (13.62 x 12.16 x 7.20 mm) weighing approximately 12.83 carats prong set within a halo set with full cut round diamonds weighin

Platinum, Sapphire, and Diamond Ring

AN ART DECO PURPLE SAPPHIRE AND DIAMOND RING in platinum, set with a round cut purple sapphire of approximately 5.59 carats, the stepped shoulders set with baguette cut diamonds, stamped PLAT, size P

Platinum ring featuring a round cut sapphire, weighing approx. 1.80 cts, prong set in center and surrounded by a round cut diamonds set in halo, along shoulders, and in gallery, sz. 5, 6.0 grams

Sapphire, Diamond, Platinum Ring. Centering one round-cut sapphire weighing approximately 0.50 ct., surrounded by sixteen single-cut diamonds weighing a total of approximately 0.25 cttw., set in a pla

Sapphire, diamond and platinum ring Featuring (1) round-cut sapphire, weighing approximately 0.95 ct,. flanked by (6) single-cut diamonds, weighing a total of approximately 0.10 ct., set in a platinum

Vintage Platinum, Sapphire, and Diamond Ringcentering on a round cut sapphire (6mm) weighing approximately 1.1 carats set between two transitional cut diamonds weighing approximately 1.6 total carats

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

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

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

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

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

View a video of this lot: Click HereCrafted in platinum; set with a round brilliant cut diamond, weighing approximately 2.65 carats, with J-K color and SI1-SI2 clarity; rectangular fa

Platinum, Sapphire, and Diamond Ringcentering on an oval cut sapphire (8.58 x 6.88 x 4.70 mm) weighing approximately 2.24 carats, the lattice design mount set with full cut round diamonds weighing app

Vintage Platinum, Sapphire, and Diamond Ringset with two rows of full cut round diamonds weighing approximately .44 total carat (H-I color, SI2-I1 clarity), the center and outer rows set with calibre

Platinum, Sapphire, and Diamond Ringthree rows of calibre cut sapphires, with an offset design set with full cut round diamonds weighing approximately 1.17 total carats (I-J color, SI2-I1 clarity), te

Platinum art-deco style sapphire and diamond ring. Round sapphire, prong-set, approximately 1.40ct (6.8mm), dark blue color. Twelve diamonds, round-brilliant cut, approximately .20ct total weight. Fin

Estate 18k White Gold 1 Ct Sapphire & Diamond Ring. Hallmarked 750. Set with an oval sapphire of approximately 1 with two tier halo of round cut diamonds totaling approximately .60 of a carat. Ring si

A diamond, sapphire and platinum ringdesigned as a round brilliant-cut diamond, weighing approximately 1.00 carats, bezel-set within calibré-cut sapphire frame, further enhanced by round brilliant-

A PLATINUM, SAPPHIRE AND DIAMOND RING AND EARRING SET Featuring emerald-cut sapphires accented by two rows of round diamonds weighing approximately 1.45 carats, ring size 5 1/2, earrings measure 1/2 x

Including one ring centering twelve round-cut sapphires set in a platinum and 18k rose gold mounting, size 5; one ring centering nine single-cut diamonds weighing a total of approximately 0.09 cttw. s

Exquisite ladies vintage estate ring crafted of platinum featuring a center large cabochon cut plum sapphire with halo design set with baguette and round cut genuine diamonds. Marked "10% IRID PLAT".

Estate 14kt Yellow Gold Sapphire & Diamond Ring. Hallmarked. Set with approximately 1.5 carats of round cut white diamonds in halo around an oval cut sapphire. Can be resized. Weighs approximately 4.9

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