Antique Platinum Cabochon Opal & Diamond Ring

An antique Art Deco platinum ring, featuring a delicate band adorned with two diamonds set around a central cabochon opal. The opal showcases a light orange translucent hue and measures approximately

AN ANTIQUE OPAL AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a cabochon opal in a cluster of rose cut diamonds, stamped 18CT & PLATINUM, size M / 6.25, 2.7g. 

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.

With a fabulous 15ct. cabochon sapphire and 1 1/2ct of quality diamonds. Size 7. Total weight 9 grams. Shipping U.S. $20 plus insurance.

Platinum ring featuring an approx. 4.84ct oval ruby cabochon (by formula) and diamonds approx 0.20ctw. Ring size is 8.25, ring sits 9.6mm up from finger. Ruby is 8.3mm x 7.45mm x 7.25mm. Tested Platin

Ring size 6 1/4, ring top is 19mm x 13mm. Set with two 5.3mm opals and approx. 0.20ctw in diamonds. Marked: 18k plat. Weight - 5.8 grams.Gemstones have not been graded for color and clarity ,and teste

Ladies antique Victorian era Opal and Diamond ring. Crafted of 14k gold and platinum. Set with a stunning Opal center stone measuring 11.6mm x 8.3mm. Surrounded by a halo of 18 European cut Diamonds w

Antique platinum, diamond and cabochon ruby ring. Intricate cutwork, engraving cover the surface of this Edwardian band. The organic cutwork and engraving is set with fine faceted diamonds, while the

NO RESERVE - AN OPAL AND DIAMOND DRESS RING, Made in yellow gold and platinum, Oval cabochon opal, weighing approximately 1.50 carats, Single cut diamonds, Stamped Plat,Size N / 6.75, Weight 2.0 grams

Antique Oval Cabochon Opal, Old European Cut Diamond and 14 Karat Yellow Gold Ring. Opal with good play of multi colors. Ring size 7-1/2. Approx. weight: 6.56 grams. Condition: Very good antique condi

Antique Estate Victorian 14kt Gold Opal & Diamond Floral Motif Cluster Ring. Having textured gold beadwork around border. Set with cabochon opals and round diamonds. Ring size 4.25 can be resized.

A platinum opal and diamond ring. The opal cabochon, with pave-set diamond shoulders. Approximate diameter of opal 10mms. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham. Ring size N 1

Crafted in platinum featuring (1) natural cabochon black opal weighing approx 3.30ct. The opal is surrounded by (41) round diamonds weighing approx .41cttw and (16) tapered diamond baguettes weighing

A 900-purity platinum 6.33-carat cabochon-cut fire opal ring accented by a halo of round-cut and tapered baguette diamonds totaling 0.59 carats. Stamped 6.33, 0.59, Pt900, on the inside of the ring ba

Metal : Platinum Designer : Not Signed Gemstone : Opal cabochon 11.39ct, Diamonds 1.25ctw Measurements : Ring size 8.75, top is 23 x 19mm Marked: : pt900, 11.39, 1.25 Weight: 13.3

A mid 20th century 18ct gold and platinum, opal and diamond cluster ring. The opal cabochon, within a single-cut diamond surround. Estimated total diamond weight 0.10ct. Ring size O. Weight 2.6gms. Ov

Estate Platinum Opal & Diamond Cocktail Ring. Hallmarked. Having a cabochon cut opal at center with small white diamonds. Ring size 6.5, can be resized. Weighs approximately 3.1 grams inclusive.

Ladies 18K white gold ring featuring a natural cabochon opal approximately 23.50 carats, accented by 268 round brilliant diamonds approximately 2.49 carats, Clarity-I1, Color-I in a link chain design

This is a vintage 14K white gold ladies ring featuring a large oval Australian opal cabochon with stunning blue, red, and green fire. The opal is flanked by a total of six full cut diamonds. The diamo

1970's Platinum Black Opal & Diamond Ring. The ring is centrally set with a large oval cabochon cut black peacock opal. It exhibits a fine blue to green harlequin play of color. It weighs approx. 5.99

oval cabochon weighing 2.80 carats with orange, blue and green play of fire, surrounded by 18 round diamonds totaling 1 carat, 14K yellow gold antique setting, with appraisal of $4,000.00, currently s

" ""   Grading Results:___________Stone Type: Natural Fire OpalShape: Round CabochonCarat: 1.30 ctColor: OrangeClarity: Loupe Clean Grading Results:____________Stone Type

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, stamped 18ct, size N / 6.75, 4.2g. 

Antique opal and diamond ring, set in 14kt yellow gold, approx. 1.0 ct oval opal cabochon (frosted), .35 ct. tw. Old European cut diamond sides, sz. 6 3/4, 3.1 grams. New bidders to Smiths - payment f