A SAPPHIRE AND DIAMOND RING set with a cabochon sapphire of approximately 8.60 carats, accented by

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a round cabochon sapphire of approximately 7.18 carats, accented by trios of rose cut diamonds, stamped 750, size N / 6.75, 7.1g. 

View a video of this lot: Click HereCrafted in 14K yellow gold and silver; set with a cabochon star sapphire, weighing approximately 17.00 carats; accented by rose-cut diamonds; ring

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 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

circa 1970s, set to the front with one oval cabochon opal weighing approximately 5.60 carats and accented with prong set round brilliant cut diamonds weighing approximately .69 total carat (H-J color,

AN UNHEATED SAPPHIRE AND DIAMOND RING set with a cabochon sapphire of 11.91 carats, the shoulders accented by old mine cut diamonds, no assay marks, size H / 4, 4.8g. Accompanied by a gemmological rep

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 FRENCH SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire of approximately 3.57 carats accented by old cut diamonds, French assay marks, size J1/2 / 5, 10.6g. 

TIFFANY & CO.: A PLATINUM, STAR SAPPHIRE AND DIAMOND RING Centering an oval star sapphire cabochon weighing approximately 16.30 carats, accented by round and trapezoid-shaped diamonds weighing approxi

White Gold, Sapphire, and Diamond Ringring with a center raised element set with a round cabochon sapphire weighing approximately 2.17 carats and set to each side with round cut sapphire accents weigh

Natural Star Sapphire and Diamond Ring 18k white gold, the ring mounted with a cabochon-cut blue star sapphire weighing approximately 19.66 carats, accented by round brilliant-, pear-, marquise- and b

A VINTAGE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cabochon sapphire and an old cut diamond of 1.47 carats, accented by further old mine cut diamonds, French assay marks for 18 carat

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

A SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut blue sapphire of approximately 5.02 carats, accented by rows of round brilliant cut diamonds, with further round brilliant cut diamonds to the

View a video of this lot: Click HereCrafted in 18K white gold; set with a oval-shaped pink sapphire, weighing approximately 1.70 carats; accented by round brilliant-cut diamonds, weig

White Gold, Star Sapphire, and Diamond Ring

AN 18K BI-COLOR GOLD, YELLOW SAPPHIRE AND DIAMOND RING Centering an oval yellow sapphire weighing approximately 6.15 carats accented by round diamonds set in a swirling openwork shank, size 8 1/2

Comprised of a ring and a pendant, decorated with invisibly-set square-cut sapphires, weighing a total of approximately 4.30 carats, further accented by bead-set round brilliant-cut diamonds, weighing

14K TRIPLE SAPPHIRE CABOCHON & DIAMOND RING bezel set with 3 oval cabochon sapphires, largest stone approx. 8x6mm, accented with 10 round diamonds approx. 0.15 carat, in yellow gold, tests 14K, size 7

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

Crafted in platinum and 18K gold; set with a trapezoid cabochon-cut black opal, measuring approximately 12.40 x 9.30 x 4.65 mm; lozenge-shaped sapphire, weighing approximately 2.60 carats; accented by

Art Deco Platinum, Sapphire, and Diamond Ringthe pyramidal cabochon sapphire (14.3 x 12.3 x 9.45 mm) bezel set and weighing approximately 14.85 carats within a surround of old European and old single

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

Ladies custom 18K white and yellow gold ring featuring an oval cabochon lapis lazuli approximately 10.54 carats accented by 3 round brilliant diamonds approximately 0.09 carats, Clarity-SI1, Color-H,