An unheated Ceylon sapphire and diamond dress ring, claw-set with an octagonal-cut sapphire of

A CEYLON NO HEAT SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut blue sapphire of 4.10 carats, within a rectangular border set with old cut and baguette cut diamonds, the diamonds all totalling

18 kt. White Gold, Unheated Ceylon Sapphire and Diamond Ring, center prong set cushion mixed cut unheated Ceylon blue sapphire, wt. approx. 11.31 cts., approx. 13.73 x 10.75 x 7.41 mm; shoulders with

AN UNHEATED VIOLET SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a central oval cut violet sapphire of 2.02 carats, within a navette border set with clusters of marquise and round brill

AN UNHEATED SAPPHIRE, DIAMOND AND ENAMEL DRESS in platinum, set to the centre with an unheated Madagascan octagonal step cut sapphire of 1.30 carats in a border of black enamel and round brilliant cut

CEYLON NO HEAT SAPPHIRE AND DIAMOND RING, BULGARI in platinum and 18ct gold, claw set with an emerald cut sapphire of 6.54 carats, accented by pairs of baguette cut diamonds, signed Bvlgari, size N /

A sapphire and diamond dress ring, the circular shaped sapphire claw set between clusters of eight cut diamonds, finger size M

AN 18 CARAT WHITE GOLD SAPPHIRE AND DIAMOND RING an octagonal-cut sapphire in a claw setting, to diamond-set shoulders. Estimated total diamond weight 0.10ct, hallmarked Sheffield, ring size M, 3.3 gr

View a video of this lot: Click HereCrafted in 18K white and yellow gold; set with a cushion modified mixed cut natural Ceylon unheated sapphire, weighing approximately 7.15 carats; s

View a video of this lot: Click HereCrafted in 14K white gold; set with a 18.14 carat cushion faceted Ceylon unheated sapphire; flanked by two baguette cut diamonds, weighing a total

A SAPPHIRE AND DIAMOND DRESS RING set with an oval cut sapphire of 0.55 carats in a stylised cross shaped border of french cut sapphires and single cut diamonds, no assay marks, size N / 6.75, 4.2g.

A SAPPHIRE AND DIAMOND RING set with an octagonal step cut sapphire of 0.62 carats accented on each side by a round brilliant cut diamond, no assay marks, size O / 7, 2.3g.

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

14 kt. White Gold, Yellow Sapphire and Diamond Ring , center prong set octagonal step cut yellow sapphire, wt. 1.39 cts., 6.35 x 4.97 x 4.25 mm; double halo and support with 66 square and round brilli

A sapphire and diamond cluster ring claw-set with an oval-cut sapphire, in a single border of graduated round brilliant-cut diamonds, to a plain unmarked shank (Ring size: K)

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING set with a central cushion cut sapphire of 2.86 carats with a double row diamond border with stylised edge. Ring size N / 6.75.

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of 4.90 carats accented by round brilliant cut diamonds to the band, stamped 750, size M / 6, 6.0g.

A SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an oval cut sapphire within two concentric rows of round brilliant cut diamonds, each shoulder set with a trio of round brilliant cut diamonds,

A sapphire and diamond three-stone ring claw-set with an oval-cut sapphire and two round brilliant-cut diamonds, the plain band stamped PLAT; with accompanying report by Gemmological Certification Ser

UNHEATED CEYLON SAPPHIRE AND DIAMOND RING Containing one oval modified step cut sapphire measuring approximately 15.88 x 9.80 x 4.10 mm and 12 round brilliant cut diamonds weighing approximately 3.00

Fabulous Modern 18ct white gold textured shank sapphire and diamond dress ring, set with 2 oval cut dark blue sapphires total weight of sapphires 2.22ct, and 20 round brilliant cut diamonds, total wei

AN ART DECO SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an emerald cut blue sapphire of 5.88 carats, between stepped shoulders set with baguette cut diamonds, stamped Platinum, size N / 6.75

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut blue sapphire of 6.12 carats, within a border of single cut diamonds, no assay marks, size N / 6.75, 5.4g. Accompanied by a gemmologic

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 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