Platinum Opal Diamond Oval Ring 

Platinum cocktail ring, with oval 15.5 x 12.5mm opal, surrounded with approx. 0.20ct win diamonds . Opal is slightly loose in the setting. Ring size - 5.75, ring top - 17mm x 20mm. Marked 900pt. Weigh

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

A PLATINUM, OPAL AND DIAMOND RING Centering an opal oval-shaped cabochon weighing approximately 4.10 carats encircled by round diamonds weighing approximately 0.75 carats, size 6 3/4

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

Art Deco Opal, Diamond, Platinum Ring The ring features an oval-shaped opal cabochon measu

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

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

A PLATINUM, BLACK OPAL AND DIAMOND RING Centering a black opal oval-shaped double cabochon weighing approximately 4.50 carats encircled by round and tapered baguette diamonds weighing approximately 1.

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

Opal, diamond and platinum ring Centering (1) oval opal cabochon, measuring approximately 19 X 13 mm, flanked by (4) full-cut diamonds, weighing a total of approximately 0.10 ct., set in a platinum mo

2.45ct Opal, 0.25ctw VS2-SI1/G-H Diamond Solid Platinum Ring - This ring was finely crafted of solid platinum and boasts a lovely 2.45ct oval shaped opal. The ring is then finished with approximately

Platinum, Opal and Diamond Rings (2) rings including a 1.68 carat oval cut cabochon opal flanked by baguette and marquise cut diamonds weighing approximately 0.55 carats total and a round cut orange d

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

An oval opal cabochon with predominately green color play, approx. 7.0 cts. by formula, baguette and RBC diamond pierced shoulders, diamonds approx. .36 ct. TW. Ca. 1940. Unmarked. Size 7 1/2. 4.1 dwt

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.

4.75 Carat Oval Opal, .32 Carat TW Round Brilliant Cut Diamond and Platinum Ring. Opal with good play of multi color. Diamonds F-G color, VS clarity. Stamped Pt900. Ring size 6. Ring top measures 3/4"

Vintage opal, diamond, and platinum ring, having one (1) approximately 12.60mm x 8.85mm oval shape light gray bodied opal with very good play of color and twenty eight (28) round brilliant transitiona

No Reserve Price!   Grading Results:___________Stone Type: Natural Fire-OpalShape: Oval CabochonCarat: 1.30 ctColor: Yellowish OrangeClarity: Eye Clean   Grading Results:_

No Reserve Price!   Grading Results:___________Stone Type: Natural Fire OpalShape: Oval CabochonCarat: 3.20 ctColor: OrangeClarity: Eye Clean   Grading Results:___________

3.70ct Black Opal, 0.95ctw SI1-SI2/G-H Diamond Solid Platinum Ring - This ring was finely crafted of solid platinum and boasts a 3.70ct (approximate) oval shaped black opal which displays an exquisite

2.75ct Black Opal, 1.25ctw VS2-SI1/G-H Diamond Solid Platinum Ring - This lovely ring was finely crafted of solid platinum and boasts an approximately 2.75ct oval-shaped black opal which displays an e

2.45ct Black Opal, 0.50ctw SI1-SI2/G-H Diamond Solid Platinum Ring - This ring was finely crafted of solid platinum and boasts an approximately 2.45ct oval shaped black opal which displays a beautiful

2.90ct Opal, 0.85ctw VS2-SI1/G-H Diamond Solid Platinum Ring - This lovely ring was finely crafted of solid platinum and boasts an approximately 2.90ct oval shaped opal. This opal displays a clean whi

Lady's Approx. 8.31 Carat Oval Cut White Opal, .86 Carat Diamond and Platinum Ring. Opal with good play of red, green and blue color. Diamonds F-G color, VS clarity. Signed PT900. Very good condition.