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1.62 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 1.62 Ct / Dimensions - 9.90 x 7.10 x 5.00 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

3 days Left

1.62 Ct Natural Black Flashing Fire Opal Pear Cab

$1

(1 bid)

3.11 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 3.11 Ct / Dimensions - 13.50 x 10.00 x 5.20 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

6 days Left

3.11 Ct Natural Black Flashing Fire Opal Pear Cab

$1

(1 bid)

2.92 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 2.92 Ct / Dimensions - 14.60 x 9.10 x 5.10 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

6 days Left

2.92 Ct Natural Black Flashing Fire Opal Pear Cab

$1

1.61 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 1.61 Ct / Dimensions - 10.20 x 7.10 x 5.00 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

6 days Left

1.61 Ct Natural Black Flashing Fire Opal Pear Cab

$1

1.44 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 1.44 Ct / Dimensions - 10.90 x 7.80 x 4.00 mm / Shape - pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

6 days Left

1.44 Ct Natural Black Flashing Fire Opal Pear Cab

$1

2.07 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 2.07 Ct / Dimensions - 10.50 x 8.50 x 4.50 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Jul 06, 2026

2.07 Ct Natural Black Flashing Fire Opal Pear Cab

$1

2.04 Ct Natural Black Flashing Fire Opal Cushion Cab: Weight - 2.04 Ct / Dimensions - 11.20 x 7.20 x 4.70 mm / Shape - Cushion Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Jul 06, 2026

2.04 Ct Natural Black Flashing Fire Opal Cushion Cab

$1

1.21 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 1.21 Ct / Dimensions - 8.50 x 6.60 x 4.50 mm / Shape - Oval Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Jul 06, 2026

1.21 Ct Natural Black Flashing Fire Opal Oval Cab

$1

17.60 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 17.60 Ct / Dimensions -25.00 x 18.00 x 8.80 mm / Shape - Oval Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Jul 10, 2026

17.60 Ct Natural Black Flashing Fire Opal Oval Cab

$1

0.77 Ct Natural Multicolor Welo Opal Flash Fire Oval Cab: Weight - 0.77 Ct / Dimensions - 7.70 x 6.00 x 3.50 mm / Shape & Cut - Oval Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

3 days Left

0.77 Ct Natural Multicolor Welo Opal Flash Fire Oval Cab

$1

(1 bid)

0.91 Ct Natural Multicolor Welo Opal Flash Fire Oval Cab Set: Weight - 0.91 Ct / Dimensions - 6.0x4.1 - 6.1x4.2 mm / 3 Pc's / Shape & Cut - Oval Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

3 days Left

0.91 Ct Natural Multicolor Welo Opal Flash Fire Oval Cab Set

$1

(1 bid)

1.53 Ct Natural Multicolor Welo Opal Flash Fire Oval Cab Pair: Weight - 1.53 Ct / Dimensions -7.80 x 5.70 x 2.80 mm / 2 PC's / Shape & Cut - Oval Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

3 days Left

1.53 Ct Natural Multicolor Welo Opal Flash Fire Oval Cab Pair

$1

(1 bid)

10000 past auction results for "black-welo-opal"

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1.82 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 1.82 Ct / Dimensions - 9.70 x 7.30 x 5.50 mm / Shape - Oval Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

1.82 Ct Natural Black Flashing Fire Opal Oval Cab

Gems AuctionBangkok, TH

1.40 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 1.40 Ct / Dimensions - 11.10 x 7.20 x 4.00 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

1.40 Ct Natural Black Flashing Fire Opal Pear Cab

Gems AuctionBangkok, TH

Sarosi Black Opal, Gold Ring Stones: Black opal: Sarosi Black Opal, Gold Ring Stones: Black opal cabochon Metal: 18k white and yellow gold Marked: Sarosi Gross Weight: 29.50 grams Size: 8 (sizeable&rpa

2026

Sarosi Black Opal, Gold Ring Stones: Black opal

Heritage AuctionsDallas, TX

4.35 Carats Iridescent Welo Opal Oval Cabochon - Natural Ethiopian Stone, 29XP: This luminous oval cabochon Welo opal dances with a kaleidoscopic play of color, shifting between soft mint green, sky blue, lavender, and warm peach hues as light moves across its smooth, domed surfa

2026

4.35 Carats Iridescent Welo Opal Oval Cabochon - Natural Ethiopian Stone, 29XP

Lazo HeritageSathorn, Bangkok

10.40 Carats Multicolor Welo Opal Selection - Natural Ethiopian Stones, 7-9mm, 16XK: A kaleidoscope of shifting fire dances across this glowing selection of Welo opals, offering flashes of electric green, neon pink, oceanic blue, and sunlit orange. The stones exhibit that signature et

2026

10.40 Carats Multicolor Welo Opal Selection - Natural Ethiopian Stones, 7-9mm, 16XK

Lazo HeritageSathorn, Bangkok

1.91Ct Welo Black Opal Polished - Ethiopian Opal , 250E: ThousandPlanet Auction Subject: Natural Ethiopian Welo Black Opal Origin: Ethiopia Carat Weight: 1.91Ct Dimension: 11.3x8.2x4.1 mm Treatment: Smoked Type: Cabochon, Polish

2026

1.91Ct Welo Black Opal Polished - Ethiopian Opal , 250E

ThousandPlanetHunghom, Kowloon, HK

*16.97Ct Welo Opal Polished - Ethiopian Opal , 191C: ThousandPlanet Auction Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 16.97Ct Dimension: 25.1x15.8x7.7 mm Treatment: Natural Untreated Type: Cabochon,

2026

*16.97Ct Welo Opal Polished - Ethiopian Opal , 191C

ThousandPlanetHunghom, Kowloon, HK

Silver Pendant with Ethiopian Black Opal 3.5grams - 925 Sterling Silver, 729B: ThousandPlanet Auction Subject: Opal & Simulated Diamond Silver Pendant Carat Weight: 3.5 grams (approx.) Dimension: Opal 10x7mm, Pendant 22x15mm

2026

Silver Pendant with Ethiopian Black Opal 3.5grams - 925 Sterling Silver, 729B

ThousandPlanetHunghom, Kowloon, HK

Sterling Silver & Semi-Precious Stones Rings: 20 various rings with stones including garnet, ruby, amethyst, moss agate, black onyx, blue glass, blue sapphire, peridot, citrie, zircon, lapis, opal

2026

Sterling Silver & Semi-Precious Stones Rings

Saucon Valley / Searchlight AuctionAllentown, PA

2.91 Ct Natural Multicolor Welo Opal Flash Fire Round Ball Beads: Weight - 2.91 Ct / Dimensions - 4.00 - 4.40 mm / 8 Pc's / Shape & Cut - Round Ball Beads / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

2.91 Ct Natural Multicolor Welo Opal Flash Fire Round Ball Beads

Gems AuctionBangkok, TH

7.44 Ct Natural Multicolor Welo Opal Flash Fire Round Beads: Weight - 7.44 Ct / Dimensions - 5.30 - 5.60 mm / 16 Pc's / Shape & Cut - Round Beads / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

7.44 Ct Natural Multicolor Welo Opal Flash Fire Round Beads

Gems AuctionBangkok, TH

0.87 Ct Natural Multicolor Welo Opal Flash Fire OCtagon Cut: Weight - 0.87 Ct / Dimensions - 8.10 x 6.10 x 3.40 mm / Shape & Cut - Octagon Cut / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

0.87 Ct Natural Multicolor Welo Opal Flash Fire OCtagon Cut

Gems AuctionBangkok, TH

1.45 Ct Natural Black Flashing Fire Opal Trillion Cut: Weight - 1.45 Ct / Dimensions - 9.20 x 8.80 x 5.10 mm / Shape - Trillion Cut / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

1.45 Ct Natural Black Flashing Fire Opal Trillion Cut

Gems AuctionBangkok, TH

*24.07Ct Calibrated 7x5mm Welo Opal Set - Ethiopian Opal, 1194B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 24.07Ct Dimension: 7x5.1x2.4 mm Treatment: Natural Untreated Type: Cabochon, Pol

2026

*24.07Ct Calibrated 7x5mm Welo Opal Set - Ethiopian Opal, 1194B

Ksmith Heritage AuctioneersJelutong, Penang

4.06Ct Welo Black Opal - Ethiopian Opal - Faceted Polished , 1233E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Black Opal Origin: Ethiopia Carat Weight: 4.06Ct Dimension: 13.7x11.1x6.3 mm Treatment: Smoked Type: Faceted, P

2026

4.06Ct Welo Black Opal - Ethiopian Opal - Faceted Polished , 1233E

Ksmith Heritage AuctioneersJelutong, Penang

Natural Lightning Ridge Opal Carving on Black Onyx , 614E: Ksmith Heritage Auctioneers Subject: Natural Lightning Ridge Opal Carving on Black Onyx Origin: Australia

2026

Natural Lightning Ridge Opal Carving on Black Onyx , 614E

Ksmith Heritage AuctioneersJelutong, Penang

3.51Ct Natural Freeform Black Opal - 13x11x4mm - Polished Rough , 553E: Ksmith Heritage Auctioneers Subject: Natural Opal Origin: Ethiopia Treatment: Smoked Shape: Freeform Type: Polished Rough

2026

3.51Ct Natural Freeform Black Opal - 13x11x4mm - Polished Rough , 553E

Ksmith Heritage AuctioneersJelutong, Penang

3.81Ct Natural Freeform Black Opal - 16x13x4mm - Polished Rough , 210E: Ksmith Heritage Auctioneers Subject: Natural Opal Origin: Ethiopia Treatment: Smoked Shape: Freeform Type: Polished Rough

2026

3.81Ct Natural Freeform Black Opal - 16x13x4mm - Polished Rough , 210E

Ksmith Heritage AuctioneersJelutong, Penang

2.40 Carats Natural Ethiopian Welo Opal - Rectangle Cabochon Loose Gemstone Lot, 6WE: Natural rectangle cabochon Welo opal lot, sourced from the premium Welo deposit in Ethiopia. This curated collection features 3 exceptional opals with translucent, milky white bases, each alive with v

2026

2.40 Carats Natural Ethiopian Welo Opal - Rectangle Cabochon Loose Gemstone Lot, 6WE

Lazo HeritageThung Wat Don, Sathorn, Bangkok, Bangkok

2.86 Carats Pastel Play-of-Color Ethiopian Welo Opal - Natural Loose Gemstone, 47BH: This exquisite 2.86ct Ethiopian Welo opal enchants with a dreamy, pastel play-of-color that shimmers across its perfectly polished round cabochon. Soft, luminous flashes of sky blue, mint green, laven

2026

2.86 Carats Pastel Play-of-Color Ethiopian Welo Opal - Natural Loose Gemstone, 47BH

ThousandPlanetHunghom, Kowloon

BOHEMIAN REACTIVE ART GLASS VASES, LOT OF TWO: BOHEMIAN REACTIVE ART GLASS VASES, LOT OF TWO, plush/satin finish, opal/custard (reacts under black light) cased deep rose shaded to pink, comprising an ovoid form and a shoulder form vase. Bohem

2026

BOHEMIAN REACTIVE ART GLASS VASES, LOT OF TWO

Jeffrey S. Evans & AssociatesMt. Crawford, VA

DAVID LOTTON (AMERICAN, B. 1960) WAVE DECORATED STUDIO ART GLASS PAPERWEIGHTS, LOT OF TWO: DAVID LOTTON (AMERICAN, B. 1960) WAVE DECORATED STUDIO ART GLASS PAPERWEIGHTS, LOT OF TWO, each having a black core with opal shading to blue decoration, one featuring a left and right lobe with curve

2026

DAVID LOTTON (AMERICAN, B. 1960) WAVE DECORATED STUDIO ART GLASS PAPERWEIGHTS, LOT OF TWO

Jeffrey S. Evans & AssociatesMt. Crawford, VA

1.94 Ct Natural Multicolor Welo Opal Top Fire Oval Cut: Weight - 1.94 Ct / Size - 11.60 x 8.20 x 4.70 mm / Shape - Oval Cut / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

2026

1.94 Ct Natural Multicolor Welo Opal Top Fire Oval Cut

Gems AuctionBangkok, TH

2.50 Ct Natural Multicolor Welo Opal Top Fire Solid Rough: Weight - 2.50 Ct / Size - 11.10 x 9.50 x 6.30 mm / Shape - Solid Rough Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

2026

2.50 Ct Natural Multicolor Welo Opal Top Fire Solid Rough

Gems AuctionBangkok, TH

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