Oval Black Opal First Image

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Oval Black Opal First Image

Oval Black Opal

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3.60ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE (1 of 2)

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1.08ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA (1 of 2)

1.08ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA

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1.08ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA (1 of 2)

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1.08ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA (1 of 2)

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1.08ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA (1 of 2)

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1.7ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA (1 of 2)

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4.71ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE 13x10mm (1 of 2)

4.71ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE 13x10mm

Feb 12, 2026

4.71ct AFRICAN BLACK OPAL OVAL CABOCHON CUT NATURAL UNTREATED RARE 13x10mm (1 of 2)

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4.71ct AFRICAN BLACK OPAL OVAL CABOCHON NATURAL 13x10mm (1 of 2)

4.71ct AFRICAN BLACK OPAL OVAL CABOCHON NATURAL 13x10mm

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Natural Black Flashing Opal 1.68 ct Oval cut (1 of 2)

Natural Black Flashing Opal 1.68 ct Oval cut

California Gemstones

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Cosmic Fire Black Opal Oval Cabochon (1 of 2)

Cosmic Fire Black Opal Oval Cabochon

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Mar 02, 2026

7.13ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA (1 of 2)

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Feb 12, 2026

7.13ct LOOSE OVAL CABOCHON NATURAL BLACK OPAL AUSTRALIA (1 of 2)

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Oval Facet Black Opal Gemstone (1 of 6)

Oval Facet Black Opal Gemstone

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Feb 18, 2026

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5.85ct Oval Black Opal Gemstone (1 of 2)

5.85ct Oval Black Opal Gemstone 5.85ct oval black opal gemstone, 15x12x5mm

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TREMONTI 14K YELLOW GOLD OVAL BLACK OPAL AND DIAMOND (1 of 3)

TREMONTI 14K YELLOW GOLD OVAL BLACK OPAL AND DIAMOND TREMONTI 14K YELLOW GOLD OVAL BLACK OPAL AND DIAMOND RING, OPAL WEIGHS APPROXIMATELY 2.86 CTS; DIAMONDS WEIGH APPROXIMATELY TWT 1.03 CT. RING SIZE 7; GROSS WEIGHT 9.2 GRAMS

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4.70ct Lightning Ridge Oval Black Opal (1 of 3)

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4.0ct Oval Black Opal Gemstone (1 of 3)

4.0ct Oval Black Opal Gemstone Oval black opal gemstone, 4.0 carats, 16mm x 12mm x 3mm

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Oval black opal cabochon 2 cts (1 of 10)

Oval black opal cabochon 2 cts Oval shape black opal cabochon, weight 2.00 cts. Measured 12.5 mm x 7.6 mm. Opal has extremely nice play of colors. Country of origin Ethiopia, Africa.

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Suna Brothers Platinum Ring, Size 6.5, Black Opal (1 of 5)

Suna Brothers Platinum Ring, Size 6.5, Black Opal Suna Brothers Platinum Ring, Size 6.5, Having One Genuine Oval Black Opal, Cabochon Cut, 2.51 Cts. Surrounded By Round Full Cut Diamonds Set in a Pave Style, 1.36 Cts. Art Deco Style with a Twisted De

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ANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURY (1 of 1)

ANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURY 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

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A LATE 19TH / EARLY 20TH CENTURY BLACK OPAL AND DIAMOND NECKLACE (1 of 2)

A LATE 19TH / EARLY 20TH CENTURY BLACK OPAL AND DIAMOND NECKLACE A LATE 19TH / EARLY 20TH CENTURY BLACK OPAL AND DIAMOND NECKLACE graduated oval black opals suspended from diamond-set knife-edge bars to black opal and diamond swag links, to a diamond-set double bar

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Gold, Platinum, Black Opal and Diamond Ring (1 of 2)

Gold, Platinum, Black Opal and Diamond Ring 18 kt., one oval black opal ap. 7.00 cts., 7 round and 17 marquise-shaped diamonds ap. 3.00 cts., signed EZ, ap. 9.2 dwts. Size 6 3/4. Opal: dark blue with strong green and blue flashes,

18-Karat Yellow-Gold, Black Opal and Diamond Ring, Gross weight: 8.3 dwt., Shank size: 7 (1 of 2)

18-Karat Yellow-Gold, Black Opal and Diamond Ring, Gross weight: 8.3 dwt., Shank size: 7 18-Karat Yellow-Gold, Black Opal and Diamond RingCentered with one oval black opal measuring approximately 22.83 x 16.10 x 3.85 mm, surrounded by twenty-six round brilliant-cut diamonds weighing appro

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Platinum, Black Opal and Diamond Ring (1 of 2)

Platinum, Black Opal and Diamond Ring One oval black opal ap. 7.00 cts., 10 round diamonds ap. .30 ct. Size 7 1/4. Black opal: overall medium deep slightly grayish violetish blue, green, yellow and red flashes, moderate crazing, good pol

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10 ct Lightning Ridge Opal Diamond Ring (1 of 9)

10 ct Lightning Ridge Opal Diamond Ring 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

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Group of Gold, Low-Karat Gold and Gem-Set Rings (1 of 20)

Group of Gold, Low-Karat Gold and Gem-Set Rings 10, 14 and 18 kt., one cushion-shaped green tourmaline ap. 16.30 cts., 24 round diamonds ap. 1.65 cts., one emerald-cut amethyst ap. 10.00 cts., one oval black opal doublet ap. 11.7 x 8.7 x 3.2 mm., o

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Art Deco Platinum, Opal & Diamond Ring (1 of 6)

Art Deco Platinum, Opal & Diamond Ring 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

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HEAVY 18KT Y GOLD & BLACK OPAL NECKLACE (1 of 4)

HEAVY 18KT Y GOLD & BLACK OPAL NECKLACE 16" Choker necklace, in 18kt yellow gold. Large oval black opal, with 2 smaller accent opals. Property of a Palm Beach lady . total weight 34.55 dwt

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1.14 Carat Black Opal and Diamond Platinum Ring (1 of 7)

1.14 Carat Black Opal and Diamond Platinum Ring Platinum ring with oval black opal at 1.14 carats with accent diamonds at 0.25 carat total weight. Circa 1970s, size US 5, 3.6 grams

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BLACK OPAL, DIAMOND & WHITE GOLD RING (1 of 1)

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VINTAGE 14K GOLD OPAL DOUBLET & PEARL RING. (1 of 10)

VINTAGE 14K GOLD OPAL DOUBLET & PEARL RING.A vintage 14k yellow gold ring set with a 19x13 mm oval black opal doublet with very bright red multi-color, broad flashfire that is surrounded by 3 mm white half pearls with very good luster. Ring si

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GORGEOUS 14KT BLACK OPAL & ENAMEL LADIES BRACELET (1 of 6)

GORGEOUS 14KT BLACK OPAL & ENAMEL LADIES BRACELET Marked 14kt DK , Has a large oval black opal center stone, with a green and blue bow tie shape enameling total weight 29.3 grams / 18.8 DWT.

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Opal and Diamond Cocktail Ring in Platinum (1 of 4)

Opal and Diamond Cocktail Ring in Platinum Platinum opal and diamond cocktail ring, 3.37ct oval black opal with round and tapered baguette diamonds at 1.16 carat total weight, G-H color VS clarity, size US 7.5, 8.79 grams

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Two Geode Pendants and a Gem-Set Brooch / Pendant (1 of 4)

Two Geode Pendants and a Gem-Set Brooch / Pendant Two Geode Pendants and a Gem-Set Brooch / Pendantto include: a brooch set with an oval black opal doublet (24.6 x 17.4 mm) set within a naturalistic motif and completed with a single locking pin stem,

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Black & Fire Opal Earrings + Opal & Diamond Ring (1 of 5)

Black & Fire Opal Earrings + Opal & Diamond Ring 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

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14 kt White Gold, Black Opal and Diamond Ring (1 of 5)

14 kt White Gold, Black Opal and Diamond Ring 14 kt White Gold, Black Opal and Diamond Ring. One 14 kt white gold ring containing 1 oval black opal cabochon and 32 round single cut diamonds. The opal measures 9.05 mm L x 7.41 mm W x 3.54 mm D, an

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Blue Topaz and Opal Pendant with Chain (1 of 1)

Blue Topaz and Opal Pendant with Chain Blue Topaz and Opal Pendant with Chain 14k yellow gold, the pendant mounted with a pear-cut blue topaz, with an approximate weight of 16.74 carats, and an oval black opal, with an approximate weight o

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