An opal single-stone ring. The oval black opal

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

An opal three-stone and diamond ring. The graduated oval black opal cabochon line, with old-cut diamond double spacers and stylised foliate shoulders. Estimated total diamond weight 0.10ct. Ring size

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

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.

LADIES PLATINUM DIAMOND BLACK OPAL COCKTAIL RING Ladies .900 Platinum diamond cocktail fashion ring with oval cut black opal center stone. Diamond carat weight total is approximately .40cts, opal meas

An 18ct gold opal and diamond three-stone ring. The oval opal cabochon line, with single-cut diamond double spacers, to the scrolling sides and plain band. Hallmarks for London, 1961. Weight 4.9gms.

An Edwardian 18ct gold opal and diamond seven-stone ring. The graduated oval opal cabochon line, with single-cut diamond line spacers. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham,

14 kt White Gold, Black Opal and Diamond Ring. One 14 kt white gold ring containing 1 oval black opal cabochon and 32 round single cut diamonds. The opal measures 9.05 mm L x 7.41 mm W x 3.54 mm D, an

A selection of four 9ct gold gem-set dress rings. To include an amethyst single-stone ring with colourless gem asymmetric shoulders, an oval opal cabochon and sapphire cluster ring, together with two

Vintage, black opal triplet and diamond ring, 14K yellow gold, contains an oval black opal triplet and 26 single cut diamonds weighing approximately 0.75 carats total, G-H/VS-SI; 7.50 dwts, size: 7 1/

BLACK OPAL AND DIAMOND RING Containing one oval cabochon black opal measuring approximately 23.00 x 15.00 x 6.45 mm and 34 transitional and single cut diamonds weighing approximately 0.65 carat total.

Specs Style Number: RG-2722 Metal: 14k Yellow Gold & White Gold Gram Weight: 4.7 Stones: Black Opal Oval, 0.20ctw~ 4 Round Brilliant Cut Diamonds, 0.30ctw~ 6 Rubies Circa: Vintage Condition: Excellent

Beautifully crafted Serpentine nest of 3 oval opal stones complimented by a singles round Diamond. Ring Material: 14K Yellow Gold Ring S

Art Deco Platinum, Opal & Diamond Ringcentered on a prong set, oval black opal (14.97 x 10.48 x 5.03 mm) with three single cut diamonds on either side weighing approximately .11 total carat (H-I color

6 Sterling silver rings- one with an oval opal center stone and 2 small round cut diamonds (size 7.75), one black pearl (size 7.25), one appears to be emerald ruby and sapphire (size 7.75), one opales

Created Black Opan Bypass Ring, Sz. 8. This has two oval created black opals that are appx .It is marked .925 but does not test as sterling. The stones are appx. 6.5mm b5.5mm set in a bypass style wit

The yellow gold ring prong set with three oval opals, the center stone enclosed by four single cut diamonds, hallmarked 14K. Size 7.25. Condition: light expected wear.

14KYG and Stone Thai Domed Princess Rings one with round cabochon white opals size 6, gross weight approx. 5.70dwt and one with oval and round black star sapphires size 6, gross weight approx. 3.65dwt

LADY'S OPAL, DIAMOND & RUBY 14KT YELLOW GOLD OVAL FASHION RING :Set with: 1 oval green opal, stone dimesions 10 x 8 mm. 20 single cut diamonds, 0.30 carats. 26 round cut natural rubies, 0.52 carats. S

An Opal and Diamond Ring. 14 karat yellow gold ring contains one prong set oval cabochon opal which is aurrounded by ten prong set round diamonds, which are surrounded by a single band of black enamel

A BLACK OPAL RING, an oval black opal in a double claw setting, to notched shoulders, marked ‘9CT’, ring size P1/2; and A 9 CARAT GOLD GARNET AND WHITE CUBIC ZIRCONIA CLUSTER RING, hallmarked Birm