A CEYLON NO HEAT SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut blue sapphire of 4.10

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

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

NO RESERVE - A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in yellow gold, set with a cushion cut blue sapphire of 3.49 carats accented by rose cut diamonds, on a twisted wire band, no assay marks, size

A CEYLON NO HEAT SAPPHIRE DRESS RING in yellow gold, set with a row of six cushion cut blue sapphires, all totalling 2.36 carats, no assay marks, size N / 6.75, 2.2g. Accompanied by a gemmological rep

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum and 18ct white gold, set with a cushion cut blue sapphire of 4.17 carats, within a border of round cut diamonds, the diamonds all totalling 2.2-2

AN ANTIQUE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, the navette shaped face set with a cushion cut blue sapphire of 1.18 carats, within a surround of old European brilliant cut di

A BURMA NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut blue sapphire of 4.18 carats, within a graduated border of old cut and round cut diamonds, no assay marks, size N / 6.75, 4.0g. Accompa

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

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

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

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut sapphire of 4.79 carats in a cluster of round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 6.7g. A

A SAPPHIRE AND DIAMOND DRESS RING in yellow gold and silver, set with a cushion cut blue sapphire of 1.10 carats, accented by rose cut diamonds, no assay marks, size P / 7.5, 3.6g.

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

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1900 in yellow gold and silver, the navette face set with a cushion cut blue sapphire accented by rose cut diamonds, with pierced decoration to the sh

IMPORTANT CERTIFICATED 10.88 CT. CEYLON BLUE SAPPHIRE AND DIAMOND CLUSTER RING, in 18-ct gold. Set with a central cushion cut blue sapphire of 10.88 ct. flanked with diamonds totalling approx. 1.40 ct

AN ANTIQUE VICTORIAN SAPPHIRE AND DIAMOND DRESS RING, 1899 in 18ct yellow gold, set with a trio of cushion cut blue sapphires within borders of rose cut diamonds, full British hallmarks for Chester 18

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with a trio of cushion and round cut blue sapphires within borders of old cut diamonds, stamped 18ct, size L / 5.75, 3.7g.

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING, 1913 in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires punctuated by two old cut diamonds, full British hallmarks for Birmingham

A SAPPHIRE AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires, accented by pairs of old cut diamonds, stamped 18ct, size O / 7.25,

Crafted in luxurious platinum, centered by a GIA-certified Blue Sapphire, cushion cut, weighing approximately 5.87 carats, No heat all natural without any treatments. sided by Round & baguettes cut Di

A COLOUR CHANGE SAPPHIRE AND DIAMOND CLUSTER RING, SRI LANKA (CEYLON), NO HEATThe cushion cut sapphire with blue to purple colour change estimated to weigh 9.30 carats, within a surround of old mine c

Handmade contemporary custom-made ring set with (1) natural Ceylon blue sapphire, cushion shape in the center, surrounded by (14) round Brilliant cut diamonds set in a halo. Diamonds graduating in siz

A BURMA NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of 4.40 carats within a cluster of round cut diamonds, no assay marks, size M / 6, 6.3g. Accompanied by two gemmological repor

IMPORTANT 8.33 ct. BLUE SAPPHIRE AND DIAMOND RING, set with a central cushion cut blue sapphire of 8.33 ct. Flanked by baguette cut diamonds on the shoulders totalling approx. 0.75 ct. Size O. 8.3 gra