A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire accented by round cut diamonds, stamped

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 THREE STONE RING set with an oval cut sapphire between two round brilliant cut diamonds, stamped 750, size L / 5, 2.1g.

YELLOW SAPPHIRE AND DIAMOND RING set with five oval cut yellow sapphires in a border of round cut diamonds, stamped 375, size M / 6, 2.3g.

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

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire accented by baguette cut diamonds, stamped 14k, size M / 6, 3.0g.

A SAPPHIRE, YELLOW SAPPHIRE AND DIAMOND RING set with a pear cut orange sapphire, accented by sapphire cabochons and round brilliant cut diamonds, stamped K18, size M / 6, 9.0g.

A YELLOW SAPPHIRE AND DIAMOND RING set with an emerald cut yellow sapphire of 3.00 carats, accented by round brilliant cut diamonds totalling 0.60 carats, stamped PLAT, size O / 7, 5.7g.

A YELLOW SAPPHIRE AND DIAMOND RING set with an oval cut yellow sapphire of 2.00 carats, between two round brilliant cut diamonds totalling 0.4-0.5 carats, stamped PLAT, size O / 7, 4.2g.

A SAPPHIRE AND DIAMOND RING, in 18 carat yellow gold, set with a central oval cut sapphire framed by round cut diamonds with further square cut sapphires to the shank, stamped 750, size O / 7, 3.7g.

A VINTAGE SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of 0.94 carats between two round cut diamonds, accented by further diamonds to the band, no assay marks, size N / 6.5, 2.8g.

An 18-karat yellow gold ring with a 0.10-carat oval cut sapphire accented by 0.10 carats of round brilliant cut diamonds. Stamped 0.10, K18, on the inside of the ring band. Details and measurements: R

A SAPPHIRE AND DIAMOND RING in platinum, set with an oval cut sapphire accented by step cut sapphires and single cut diamonds, stamped PLAT, size N / 7, 6.5g.

A 900-purity platinum ring with a 2.31-carat oval cut sapphire accented by 0.48 carats of round brilliant cut diamonds. Stamped Pt900, 231, D048, on the inside of the ring band. Details and measuremen

A SAPPHIRE AND DIAMOND RING in platinum, set with an oval cut sapphire of 5.75 carats, in a border of round brilliant and baguette cut diamonds totalling 1.96 carats, stamped Pt900, size M / 6, 14.0g.

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut sapphire of 3.13 carats in a double border of round brilliant cut diamonds, the diamonds all totalling 1.0-1.1 carats, stamped 18K,

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

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of approximately 4.11 carats in a cluster of round brilliant cut diamonds all totalling 1.4-1.6 carats, stamped 18

A gorgeous 900-purity platinum 1.40-carat oval-cut sapphire ring accented by a halo of round-cut and tapered baguette diamonds totaling 0.68 carats. Stamped D068, 140, Pt900, on the inside of the ring

14K Gold Sapphire & Diamond Ring. Center stone is an oval cut sapphire surrounded by (6) round cut diamonds, band contains channel set sapphires. Stamped inside band. Overall Weight: 1.5 dwt / 2.33 g

Art Deco style Sapphire Diamond and Platinum Ring. Set in the center with a large oval cut lab-created sapphire accented with approx 1.50 carat TW round brilliant cut natural diamonds and round and ba

Platinum ring with a 0.82-carat oval-cut natural Ceylon sapphire accented by 0.34 carats of round brilliant-cut and tapered baguette diamonds. Stamped Pt850, 082, D034, on the inside of the ring band.

Men's 18kt yellow gold sapphire and diamond ring featuring a bezel set oval cut dark blue sapphire weighing approx. 0.80ct.. Accented with a banded design and prong set round brilliant cut diamonds we

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

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of 2.81 carats, in a border of round and baguette cut diamonds, the shoulders accented by further diamonds, no assay marks, size N / 6.5, 4.7g