A SYNTHETIC SAPPHIRE INTAGLIO RING set with a cushion cut synthetic sapphire carved to depict a

VINTAGE LADY'S PLATINUM AND 14K WHITE GOLD RING, cushion-shape top set with a central synthetic sapphire surrounded by 16 mine cut or antique single cut melee diamonds, not marked. Diamonds: approxima

A SYNTHETIC SAPPHIRE RING The collet-set oval-cut synthetic sapphire, between bi-coloured tapering accented shoulders, stamped 18K, ring size O 1/2.  Gross weight approx. 5 grams.

SYNTHETIC SAPPHIRE AND DIAMOND RING Containing one cushion mixed cut synthetic sapphire measuring approximately 8.25 x 6.55 x 5.00 mm and 12 round brilliant cut diamonds weighing approximately 0.60 ca

A SYNTHETIC SAPPHIRE AND DIAMOND CLUSTER RING set with a round cut synthetic sapphire in a cluster of round cut diamonds, no assay marks, size J / 4.75, 6.2g.

AN EARLY 20TH CENTURY SYNTHETIC COLOUR-CHANGE SAPPHIRE AND DIAMOND CLUSTER RING a cushion-cut synthetic colour-change sapphire within a milgrain border of round-cut diamonds. Estimated total diamond w

18K yellow gold ring with a prong set emerald cut synthetic sapphire of approximately 2.75 carat. Total weight 5.4 grams (.17 ozt.). Dimensions are: Ring size, 5 1/4, 7/8 inch (2.2 cm) tall. All measu

Antique 18K gold carved intaglio seal ring. The synthetic sapphire intaglio features crown and lion, measures 9.7x7.4mm and the ring is a size 4.25. Shank shows a sign of previous resizing/repair. Mar

(Lot of 2) Sapphire, diamond and platinum rings Including 1) cushion-cut sapphire, synthetic sapphire, diamond and platinum ring, size 5 (several stones are missing); together with 1) round-cut sapphi

A VINTAGE SYNTHETIC COLOUR CHANGE SAPPHIRE DRESS RING in yellow gold, set with a round cut synthetic colour change sapphire, no assay marks, size P / 7.5, 7.1g.

A VINTAGE SYNTHETIC COLOUR CHANGE SAPPHIRE DRESS RING in yellow gold, set with an emerald cut synthetic colour change sapphire, accented by foliate motifs to the mount, marked indistinctly, size N / 6

18 Karat Yellow Gold and Stone Ring set with one round cut Color-Change Synthetic Sapphire; size 7-½, weighs 7.6 grams

AN ANTIQUE CARVED CITRINE INTAGLIO SEAL / SIGNET RING in yellow gold, set with a large cushion cut citrine, reverse carved in detail to depict a coat of arms surmounted by a crest, over the motto Ex S

18 Karat Yellow Gold and Stone Ring channel set with one oval cut Color Change Synthetic Sapphire, approximately 10.51 carats; size 7-¼, weighs 7.5 grams

ANTIQUE PLATINUM-ON-YELLOW GOLD, DIAMOND AND SYNTHETIC SAPPHIRE RING. Cushion shape rectangular synthetic sapphire weighing 3.50-4.00 ct. surrounded by 14 old mine cut diamonds together weighing appr

This original Art Deco ring was handmade in 18k gold and platinum during the 1920´s. One cushion cut synthetic sapphire that weighs 3ctw approx. radiates from the center of this lovely piece. The c

14k, 10k yellow and white gold and sterling silver; Variously stamped: 14k / 10k / 925 Including a 14k yellow gold ring centering a bezel set oval-mixed cut synthetic pink sapphire gauged at 23mm x 1

Vintage marked 10K gold ring set with four round cut gemstones including ruby, peridot, synthetic sapphire, and aquamarine. In vintage George R. Stoeckel, Stroudsburg, PA jewelry box. Adjustable (shan

14KT YELLOW GOLD AND GEMSTONE RING ~ SIZE 6.5, TAPERED SHANK RING SET WITH A CLUSTER OF SQUARE CUT SYNTHETIC YELLOW SAPPHIRES IN THE CENTER AND PAVE SET DIAMOND ROUNDS ON EITHER SIDE OF THE BAND (HEAV

(Lot of 2) Synthetic sapphire, diamond, yellow gold and metal jewelry Including 1) ring, featuring (1) oval-cut synthetic sapphire, set in 10k yellow gold, size 7 1/4, gross weight 1.45 grams; 1) diam

An art deco synthetic sapphire and diamond ring set in 18k yellow gold (tested). Central oval faceted cut sapphire weighing 2.83 ct (11.25 x 8.90 x 3.87). Flanked by 12 elongated emerald cut diamonds

1) 10K yellow gold ring featuring an oval cut synthetic color-change sapphire prong set in center with two synthetic gemstone accents, stamped "B & L," sz. 5.75, and 2) 10K yellow gold ring featuring

the first 14 karat gold centering one cushion shape mixed cut sapphire/synthetic sapphire doublet measuring approximately 5.50 x 4.10 x 2.85 mm, and 10 full cut diamonds [H/VS] weighing approximately

Synthetic Sapphire, Enamel, 14k Yellow Gold Ring. Centering one oval-cut synthetic sapphire weighing approximately 10.50 cts., accented by black and blue enamel, set in a 14k yellow gold vintage mount

NO RESERVE - AN ANTIQUE GARNET INTAGLIO AND DIAMOND SEAL / SIGNET RING, EARLY 20TH CENTURY in platinum, set with a cushion cut garnet, the table reverse carved in detail to depict a coat of arms, acce