A FINE BLACK OPAL AND DIAMOND RING set with an oval

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

18KYG Black Opal and Diamond Ring size 11, bezel set oval cabochon black opal doublet approx. 13.0mm x 8.5mm, 10 prong set mixed sized round brilliant cut diamonds approx. .30cttw., stamped and tested

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.

Lady's 14k Black Opal & Diamond Ring Size 5. Includes a prong set black opal oval cabochon measuring 9.42x5.7x3.8mm (1.15ct). It is slightly bluish green with a moderate amount of crazing. It is flank

ANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURY mounted in yellow gold, claw-set with an oval black opal measuring 14.8 x 10.5mm,and weighing approximately 3.36 caarts, within a border of circ

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

Two pair of opal earrings, together with an opal and diamond ring. The largest earring pair composed of 18K yellow gold set with oval black opals of approximately .70 carats each. Overall earring meas

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

10 ct. Lightning Ridge opal and diamond dinner ring set in 14K white gold mounting. Oval black opal measuring 13 mm x 10 mm x approx. 3.7 mm and containing 12 round brilliant diamonds with a total wei

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

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.

Ladies fine estate ring, a 14kt yellow gold, diamond and black opal ring containing: (12) Old Mine cut diamonds, approx 0.85ct tw, average clarity: SI2, color: J; (1) natural flat opal of oval form, a

set with an oval opal approx. 16x13mm, accented with 8 round diamonds approx. 0.30 carats, overall head 24x22mm, in yellow gold branch style setting, stamped 14K, size 6.75, 12gms., fine condition, op

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

18K yellow gold ring featuring very fine oval opal from Coober Pedy mine in Australia, opal measures 18.5 x 12.4mm with very good green, yellow and violet play of color, set in twisted wire setting wi

14K yellow gold ring with very fine oval opal displaying even blue, green and yellow colors measuring 16 x 12mm, six full cut diamonds set in the side, sz 7.25, 3 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

Centering an oval-cut opal cabochon measuring approximately 12.0 x 10.0 mm, accented by twenty-six full-cut and eighteen baguette-cut diamonds weighing a total of approximately 0.57 cttw., set in a 14

This is a stamped 18kt yellow gold chevron shaped custom fine opal and diamond ring. Set with five graduated marquis opal cabochons in a four rope design. Eight round diamonds measure approximately 0.

14K OPAL & DIAMOND RING set with an oval cabochon cut opal approx. 9.2x7.3mm, surrounded by 16 round brilliant cut diamonds approx. 0.34 carats (According to Estate Appraisal: G-H color, SI2 clarity),

OPAL & DIAMOND RING set with an oval opal approx. 9x7mm, accented with a surround of 12 round diamonds approx. 0.48 carats, white gold setting stamped 14K, size 6.5, 4.1gms.

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.

BLACK OPAL AND DIAMOND RING Containing one oval cabochon black opal measuring approximately 15.00 x 13.00 mm and 40 round brilliant cut diamonds weighing approximately 0.40 carat total. Mounted in yel

BLACK OPAL AND DIAMOND RING Containing one oval cabochon black opal measuring 10.85 x 9.00 mm and 12 round brilliant cut diamonds weighing approximately 1.20 carats total. Mounted in yellow gold. Ring