A FINE ART DECO BLACK OPAL AND DIAMOND RING in white gold, set with a pear shaped cabochon opal

A FINE ART DECO BLACK OPAL AND DIAMOND RING in white gold, set with a pear shaped cabochon opal accented by round cut diamonds, no assay marks, size I / 4.5, 3.5g.

AN OPAL AND DIAMOND DRESS RING in 18ct white gold, set with a pear shaped cabochon opal within a twisted mount, accented by round cut diamonds, stamped 18kt, size Q / 8, 8.6g.

Gorgeous 14k white gold Art Deco design ring with a total of 11 round brilliant diamond. The Pear Shapped Opal is set in the center. The ring weights 3g. Ring size 7.50mm.

Gorgeous 14k white gold Art Deco design ring with a total of 11 round brilliant diamond. The Pear Shapped Opal is set in the center. The ring weights 3g. Ring size 7.50mm.

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

AN OPAL AND DIAMOND PENDANT NECKLACE in 18ct white gold, set with a pear shaped cabochon opal in a border of round brilliant cut diamonds, suspended from a chain, full British hallmarks, pendant 2.3cm

Opal, Diamond and Onyx Ring 14k white gold, the ring mounted with a pear-shaped cabochon-cut opal weighing approximately 2.45 carats, accented by baguette- and round brilliant-cut diamonds weighing ap

Art Deco Platinum Black Opal & Diamond Pendant. It features a drop design centrally set with a massive pear shaped black opal. It exhibits a harlequin peacock play-of-color and measures 31.00mm x 21.0

A BLACK OPAL AND DIAMOND PENDANT AND CHAIN in 18ct yellow gold, the pendant set with a pear shaped cabochon black opal in a border of round brilliant cut diamonds, accented by a further round brillian

18k yellow Gold Ring, set with a Pear shaped Cabochon Opal with 6 Singe cut Diamonds on the side weighing Approx. 0.60 carats. J-K color, I1 clarity. Ring size: 8. Weight: 5.8 grams.

Arts and Crafts Black Opal, Diamond, Enamel, Gold Necklace, Marcus & Co. The necklace

Arts and Crafts Black Opal, Diamond, Enamel, Gold Necklace, Marcus & Co. The necklace

The pear-shaped opal, 15.40 x 10.54 mm, within a nest of RBC diamond, approx. .33 ct. TW. and bright gold wire, on braided chain. 14k. 1 1/2" x 3/4", 18". 4.4 dwt.

Crafted out of 14K white gold, featuring centered opal cabochons, one pear-shaped weighing approximately 1.00 carat, the other oval-shaped weighing approximately 4.10 carats, each opal is surrounded b

Opal, Diamond, White Gold Ring. Centering one oval shaped opal cabochon measuring approximately 11 x 8.3 mm, surrounded by fourteen full-cut diamonds weighing a total of approximately 1.00 cttw., set

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.

This is a 14 karat white gold genuine mined opal ring with rubies and diamonds.  The approximate 1.15 carat genuine, mined pear-shaped opal is prong-set inside a halo of over 1 carat of round, fa

This is an antique Art Deco ladies ring rendered in fine 14K white gold The ring features a large pear-shaped aquamarine gemstone surrounded by a mixed array of antique cut diamonds. The diamonds rang

white gold brooch center bezel set with one oval cabochon cut White Opal, approximately 54.80 carats, accented with 46 full cut round Diamonds [I/I-1], approximate total weight 0.48 carats, 27.1 grams

A gold opal, garnet and diamond ring, A gold opal, garnet and diamond ring, an oval cabochon opal, with a round mixed cut garnet at each side, to shoulders grain set with eight cut diamonds, and a pla

An oval black opal with board blue/green color play, 12.10 x 9.20 mm, set horizontally in RBC diamond pave gallery, hoop, 1.65 cts. TW. 18k. Size 4 1/2. 4.0 dwt.

Rushmore Gold - Black Hills Gold ring, set with marquise shaped cabochon white opal, likely 1.25 carat stone, ring size 6.25; [1.09 dwt total], EX

A group of gemstone and gold ringsincluding five fourteen karat gold rings set with round brilliant or single-cut diamonds, circular-cut rubies, seed pearls, pear-shaped opal cabochon or jeweler's gla

Opal, diamond, and green gem ring Set with a cabochon opal measuring approx. 18.20 x 12.20 mm, framed by circular-cut green gems and round brilliant-cut diamonds 14k white gold Ring size 7.50; Gross w