A synthetic spinel single-stone ring.

A synthetic spinel single-stone ring. The circular-shape synthetic blue spinel, with scalloped surround and tapered shoulders. Ring size P. Weight 4.7gms.

A synthetic spinel single-stone ring. The rectangular-shape blue synthetic spinel, with curved and bar shoulders, to the tapered band. Weight 6.8gms.

Four 9ct gold gem-set rings. To include a blue paste single-stone ring with textured shoulders, a green synthetic spinel single-stone ring with openwork shoulders and two further rings. One AF. Hallma

Two 9ct gold gem-set rings. To include a synthetic spinel single-stone ring, together with a split-pearl and garnet cluster ring. AF. Hallmarks for 9ct gold. Weight 6.3gms.

Three gem-set dress rings. To include a 1970s 9ct gold amethyst and split-pearl cluster ring with textured surround, with two synthetic gem single-stone rings. One with hallmarks for Birmingham, 1971.

Three gem-set rings. To include a mid 20th century synthetic sapphire single-stone ring, a graduated diamond five-stone ring, together with a graduated diamond three-stone crossover ring. One AF. Esti

Four gem-set rings. To include a 9ct gold amethyst single-stone ring, a zircon two-stone crossover ring, together with two synthetic corundum single-stone rings. One with hallmarks for 9ct gold. Total

Two gem-set rings. To include an opal and sapphire cluster ring, together with a 9ct gold synthetic opal single-stone ring. One with hallmarks for Birmingham. Total weight 8.4gms.

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.

14K Yellow Gold Diamond & Synthetic Spinel Ring. Stone Measures 17.0mm x 14.10mm x 18.50mm. Test 14K. Shipping $35.00 Ring Size 7. 9.52 dwt. See Photos.

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 assortment of five dress rings. To include an 18ct gold old-cut diamond five-stone ring, a 9ct gold brilliant-cut diamond single-stone ring, a synthetic ruby and cubic zirconia accent hand ring, to

A selection of three gem-set dress rings. To include a 9ct gold labradorite single-stone ring, a synthetic ruby cluster ring and a 9ct gold amethyst and blue gem dress ring. Two with hallmarks for 9ct

This is an antique 14K white gold filigree Art Deco ring featuring a large faceted synthetic blue spinel stone at the center. The ring is a size 8.75US and it weighs 2.4g. The synthetic spinel is 10 x

A selection of three gem-set rings. To include a snake ring with ruby eye detail, a sapphire single-stone ring, together with a synthetic sapphire and ruby buckle ring. Two with hallmarks for 9ct gold

This is an antique 14K white gold filigree Art Deco ring featuring a large faceted synthetic mint green spinel stone at the center. The ring is a size 6.75US and it weighs 2.6g. The synthetic spinel i

School name illegible. Stamped BBB 10K and engraved "NP Gable" to interior of shank. Green synthetic spinel stone. Size 4-1/4. 1/2" wide. 7.7 dwt. EK IMPORTANT: Before bidding, please read the terms a

14k Retro Synthetic Stone Ring Pretty ring tests 14k, no hallmarks found, has 2 step-cut synthetic spinel stones @ approx 10 x 8.5mm, 2 synthetic white sapphires @ 2.3mm each and 1 synthetic ruby @ ap

10k marked setting with white synthetic spinel stone. 1.3 dwt. Size 6. EK IMPORTANT: Before bidding, please read the terms and conditions. When you registered for the auction you agreed to these terms

Forty-five small parcels of gemstones, some with single stones. Includes mixed cuts of quartz, rubies, diamonds, tourmaline, beryl, nephrite, moonstone, opals, synthetic spinel, thulite, copper nugget

Two gem-set rings. To include a 9ct gold sapphire and diamond three-stone crossover ring, together with a synthetic blue spinel and paste accent ring. One with hallmarks for London, 1979. Total weight

METAL: 18k Gold. MEASUREMENTS: Ring size - 6.25, ring top - 18mm x 16mm. GEMSTONES: Blue stone (tested synthetic spinel RI 1.730), Diamonds approx. 0.38ctw. MARKED: 18k. WEIGHT: 4.1 grams.Gemstones ha

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

Comprising: a 14k emerald pendant with 14k gold chain, a 14k gold and emerald ring, a 14k mother's charm necklace with synthetic stones, a single synthetic emerald earring, a 10k pair of emerald earri