BLACK OPAL SINGLE STONE RING

A single stone black opal ring, A single stone black opal ring, an oval cabochon opal, approximately 9.00mm x 13.00mm, claw set to a plain collet, to trifurcated shoulders, and a plain shank. Tested a

An Art Deco single stone black opal ring, An Art Deco single stone black opal ring, with diamond set shoulders. A circular tallow cabochon cut black opal, milligrain set to each shoulder, to a ridged

A gold single stone black opal ring, A gold single stone black opal ring, a round cabochon black opal, damaged, rub set to tapering, textured, flat section band, tested as approximately 18ct gold, 11.

NO RESERVE, OPAL SINGLE STONE RING, Set with a cabochon cut opal of approx. 11.9 x 8.4 x 3.4 mm. Size J. 2.1 grams.

An opal single-stone ring. The oval opal doublet collet, with polished surround, to the trifurcated shoulders. Ring size T. Weight 4gms.

An opal single-stone ring, AF. The rectangular opal cabochon, with openwork foliate sides. Ring size H. Weight 2.6gms. Overall condition good. Minor surface scratches/wear in keeping with general age

Four gem-set rings. To include a cultured pearl single-stone ring, an opal single-stone ring, together with two further rings. Weight 14.1gms.

A selection of four 9ct gem-set rings. To include an amethyst single-stone ring, an opal single-stone ring, a garnet dress ring and a garnet five-stone ring. Hallmarks for 9ct gold. Weight 10.5gms.

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.

Three 9ct gold gem-set dress rings. To include an opal single-stone ring, a garnet cluster ring, together with a peridot and citrine abstract ring. Hallmarks for 9ct gold. Weight 8.1gms. Overall condi

Three gem-set rings. To include a fire opal single-stone ring, a goshenite three-stone ring, with a green garnet single-stone ring. Weight 7.4gms.

Ring size 8, top measures 26mm x 17.3mm wide. Hand engraving inside shank not legible. Weighs 13.0 grams. Gemstones have not been graded for color and clarity ,and tested for clarity and color enhance

Two rings. To include a 9ct gold buckle ring, together with an oval opal cabochon single-stone ring. One with hallmarks for London. Total weight 10.3gms.

Two 18ct gold diamond and gem-set rings. To include an oval opal cabochon single-stone ring with brilliant-cut diamond stepped sides, together with a ruby and diamond cluster ring. Estimated total dia

135003 10K YELLOW GOLD BLACK OPAL LADIES RING A 10k yellow gold opal (possibly black opal) ladies ring. Stone Type: Opal Weight: 4.0 GramsSize: US7 Condition: Very fine.

Sterling Silver & Black Opal Ring; Center Stone Approximately 5.5ct Surrounded By Approximately 12.25ctw Opals. Approximately 0.95ctw Diamonds E-G, VVSI. Size 7.25 9.85g. See Photos For Additional Con

Four 9ct gold gem-set rings. To include a ruby panel ring, an amethyst and opal cluster ring, an amethyst single-stone ring and a yellow quartz single-stone ring. Hallmarks for 9ct gold. Weight 12.4gm

Four gem-set rings. To include an early 20th century 9ct gold cushion-shape blue paste single-stone ring, an opal and garnet band ring and two further single-stone rings. One with hallmarks for 9ct go

925 STERLING SILVER.....14K WHITE GOLD plated;RING SIZE9;MAIN STONE-BLACK OPAL;OTHER GEMS-RUBY,SAPPHIRE;TOTAL WEIGHT28.43 CT (TOTAL WEIGHT OF SILVER + STONE)DIMENSION* STONE 1.5 TO 7.0 X 5.0 MM. * FAC

A black opal, old and single-cut diamond pierced geometric ring.Signed JoAq. Engraved 850 Plat. Ring size N. 6.1gms.

Three items of gem-set jewellery. To include an early 20th century 9ct gold purple paste bar brooch, an early 20th century gold opal stickpin, with a 9ct gold moonstone single-stone ring. Two with hal

Four gem-set rings. To include a 9ct gold opal and ruby dress ring, two 9ct gold diamond single-stone rings, together with a late Victorian 9ct gold gem-set ring. Estimated total diamond weight 0.15ct

Four gem-set dress rings. A 9ct gold opal and ruby cluster ring, a 9ct gold blue paste single-stone ring, an aquamarine single-stone ring, and a sapphire dress ring. Two with hallmarks for 9ct gold. T

Vintage 9K rose gold ring, center a black opal like stone measures approx. 12.8x10.5mm, wt. 5.6gm, size 8