A synthetic colour-change sapphire dress ring.

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

A SYNTHETIC COLOUR-CHANGE SAPPHIRE RING a round synthetic colour-change sapphire in a claw setting. Marked '22CT', ring size J1/2 4.4 grams Stone slightly loose in setting, shank resized.

A synthetic colour-change sapphire single-stone ring. The oval-shape synthetic colour-change sapphire, with rope-twist surround and openwork gallery. Ring size M. Weight 13.8gms.

A synthetic colour change sapphire single-stone ring. The oval-shape synthetic colour change sapphire, to the openwork gallery and plain band. Ring size L 1/2. Weight 7.4gms. Overall condition good. M

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

A smoky quartz pendant and two gem-set rings. To include a smoky quartz single-stone pendant, a turquoise and paste three-stone ring, together with a synthetic colour-change sapphire single-stone ring

A synthetic colour-change sapphire pendant. The oval-shape synthetic colour change sapphire, within an openwork surround, with an 18ct gold curb-link chain. Chain with hallmarks for Birmingham. Length

A synthetic sapphire bracelet. The oval-shape synthetic colour-change sapphire line, with engraved spacers and ends, and an openwork link bracelet. Length 17.4cms. Weight 8.4gms.

Stamped (partially legible) and tested 14k white gold setting with approximately 7.8 carat (15.3mm x 10.8mm x 5.4mm) synthetic color change sapphire. Stone is blue in natural light and purple in incan

A Synthetic Color Change Sapphire Ring. 14 karat yellow gold mounting contains an octagonal faceted synthetic sapphire Size: 9 Wt: 7.2 grams

A gentleman's early 20th century platinum natural colour change sapphire signet ring. The square-shape natural colour change sapphire, to the tapered band. Accompanied by report number 20024611, dated

Emerald cut synthetic color change sapphire ring, size 6-1/4. Amethyst cluster ring, size 7-3/4. London blue topaz and peridot ring, size 7. Tsavorite garnet cluster ring, size 11. All marked 14k. Tot

COLOUR-CHANGE SAPPHIRE AND DIAMOND RING The cushion-shaped colour-change sapphire between single-cut diamond shoulders, one diamond deficient, ring size approx. M Footnotes: Accompanied by a report fr

18k white gold Variously set with pink tourmaline, ruby, and synthetic color change sapphire Each ring size: 10 24.5 grams 5 pieces

Two diamond and gem-set rings. To include a ruby and diamond cluster ring and a synthetic sapphire and diamond dress ring. Estimated total diamond weight 0.50ct. Weight 7.3gms. Overall condition fair.

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

A COLOUR CHANGE SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a central cushion cut sapphire of 5.13 carats, encircled by a border of single cut diamonds, later British import marks,

Two diamond and gem-set rings. To include a diamond four-stone ring and a synthetic sapphire and colourless gem dress ring. Estimated total diamond weight 0.20ct. Total weight 3.8gms.

Centering one oval-cut synthetic color-change sapphire weighing approximately 8.30 cts., set in a 14k yellow gold ring mounting, size 9 1/2. Gross weight: 5.7 grams.       #FineJewelry #Jewelry

Synthetic Color Change Sapphire, 14k Yellow Gold Ring. Featuring one round-cut synthetic color change sapphire weighing approximately 8.40 cts., set in a 14k yellow gold mounting. {Size 8, Gross Weigh

Collection of Three Synthetic Color Change Sapphire, 14k Yellow Gold Rings. Including one round-cut synthetic color change sapphire weighing approximately 18.55 cts., 14k yellow gold ring, size 8 3/4;

Synthetic Color-Change Sapphire, 14k Yellow Gold Ring. Featuring one oval-cut synthetic color-change sapphire weighing approximately 29.45 cts., set in a 14k yellow gold mounting. {Size: 6 1/2, Gross

Three 9ct gold gem-set dress rings. To include a vari-colour sapphire cluster ring, an opal cabochon cluster ring, together with a vari-colour gem-set ring. Hallmarks for 9ct gold. Weight 13gms.