An opal and diamond half-hoop ring, featuring three graduated oval cabochons, displaying spectral

ANTIQUE OPAL AND DIAMOND RING set with three graduated oval cabochon opals and old cut diamonds, size M / 6, 6.0g.

NO RESERVE - AN ANTIQUE OPAL AND DIAMOND DRESS RING, Made in yellow gold, Three graduated oval cabochon opals, Old European brilliant cut diamonds (one replaced with a round brilliant cut diamond), No

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with three graduated oval opal cabochons, punctuated by pairs of old mine cut diamonds, British hallmarks for Birmingham, 1890, size S / 9, 5.

An early 20th century 18ct gold opal and diamond three-stone ring. The graduated oval opal cabochon line, with old-cut diamond double spacers. Estimated total diamond weight 0.10ct. Ring size L1/2. We

Ladies 14kt yellow gold opal and diamond ring featuring a prong set oval cabochon cut opal weighing approx. 8.50ct and displaying green and orange fire. Accented with a square frame of prong st round

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

A three stone half hoop fire opal and diamond ring, the oval cut opal in claw mounts with round brilliant cut diamonds to each side, on plain 9ct gold shank, together with three further gem-set rings

This is a stunning cocktail ring, crafted from 18k white gold featuring a wide shank to tapered band. Open style oval shape slim bridge with a large cabochon appx. 53.49 carats emerald in half bezel m

Van Cleef & Arpels 18k Yellow Gold Burma Ruby & Diamond Ring featuring Oval Natural Burma Cabochon ruby measuring 11.8mm x 9.0mm x 4.09mm surrounded by 12 Diamonds. Measuring 16.5mm Wide in front and

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.

AN 18K WHITE GOLD, OPAL AND DIAMOND RING Featuring a pear cabochon opal weighing approximately 16.10 carats, surrounded by round diamonds, size 7

A Platinum, Opal and Diamond Ring, consisting of one oval cabochon cut opal measuring approximately 12.80 x 10.45 x 4.00 mm and 15 round brilliant cut diamonds weighing approximately 1.50 carats total

Jadeite, diamond and platinum ring featuring one oval jadeite cabochon measuring approximately 18.33 X 15.39 X 8.06 mm, surrounded by two rows of (50) full cut diamonds, weighing a total of approximat

18K white gold masterpiece ring by Roberto Coin featuring oval cabochon and faceted iolite, round faceted sapphires and diamonds prong set in flexible round slight dome design, Roberto Coin signature

Superb 18K yellow gold ladies ring having a massive 18.55 carat oval cabochon cut dark fiery opal surrounded by 5.85 carat total weight brilliant cut white diamonds in a double bezel pattern. Ring is

Opal, Diamond, Platinum Ring The ring features an oval-shaped opal cabochon measuring 19.4

13.26 Carat Oval Cabochon Black Opal, 2.26 Carat TW Eighteen Round Brilliant Cut Diamond and Platinum Ring. Opal with very good play of multi color. Diamonds E-F color, VVS-VS clarity. Stamped Pt900.

(126719-1-A) Two diamond rings. To include a graduated oval-shape three-stone ring, together with a brilliant-cut full-circle eternity ring. Estimated total diamond weight 2.30cts, principal diamonds

Black Opal, Diamond, Platinum, Gold Ring The ring features an oval-shaped black opal caboc

18 karat yellow gold ring with one oval cabochon semi-Black Opal with gray background that weighs 15-1/2 carats. 41 round full cut diamonds at 0.84 NEIMAN MARCUS. Appraised Fair Market Value (FMV) is

Men's 18K yellow gold ring with center bezel set ethiopian oval cabochon opal that weighs 12.39cts and has a yellowish orange color with orange and green color play. Bezel set on each side is a triang

This beautiful pair of earrings are crafted from 18k yellow gold featuring graduated size 1.05 inches long oval shape hoop with omega backs. The center of the hoop has channel set rectangle shape sapp

14K white gold and platinum three-stone ring featuring an oval cut sapphire weighing approx. 3.60 carats with two old European cut diamonds weighing approx. 2.00 ctw with an average color grade of I-J

This beautiful vintage necklace is crafted from 14k yellow gold with a polished finish featuring graduated curb link chain with a long curved bar slider pendant. It has a large 11 carat oval cabochon