Results for “Black Opal”

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Natural Fire Red Black Opal Gemstones 1.39 Ct. Oval Cabochon Shape 9.8 x 8 Mm.: Product ID: 818724348 Product Name: Natural Opal Weight: 1.39 CT. Size: 9.8 x 8 x 4.8 MM. Shape: Oval Cabochon Color: Rainbow Fire Red Black Clarity:Semi - Transparent Luster: Iridescent Gems Origin:

Aug 30, 2026

Natural Fire Red Black Opal Gemstones 1.39 Ct. Oval Cabochon Shape 9.8 x 8 Mm.

Est.

US$80

-

US$127

US$1

Treasure of Gems & JewelryLake Charles, LA

GIA certified Australian black opal diamond platinum ring size 6.5: GIA certified Australian black opal diamond platinum ring size 6.5 This platinum cocktail ring features a striking natural Australian black opal, cut in a long oval double cabochon style and weighing

Buy Now

GIA certified Australian black opal diamond platinum ring size 6.5

US$3,260

BidhausNew York, NY

3.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 20BY: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 14x9x5mm. The black smoke treatment deepens

41 mins Left

3.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 20BY

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

0.98 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 0.98 Ct / Dimensions - 8.80 x 6.60 x 3.60 mm / Shape - Oval Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Aug 19, 2026

0.98 Ct Natural Black Flashing Fire Opal Oval Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

1.20 Carats Natural Black Opal - 8X8X4 mm: 1.20 Carats Natural Black Opal - 8X8X4 mm Shipping:

5 days Left

1.20 Carats Natural Black Opal - 8X8X4 mm

Est.

US$200

-

US$300

US$20

Fantasy JewelryMuscat, AE

3.13ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 34FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 12x9x6mm. The black smoke treatment deepens

41 mins Left

3.13ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 34FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

2.96ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 66BY: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 13x8x6mm. The black smoke treatment deepens

41 mins Left

2.96ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 66BY

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

Natural Play Of Color Rainbow Fire Red Black Opal Gemstones 1.36 Ct. Oval Cabochon Shape 10.3 x 7: Product ID: 818724566 Product Name: Natural Opal Weight: 1.36 CT. Size: 10.3 x 7 x 4.1 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Opaque Luster: Iridescent Gems Origin: Ethiopia Treatment: En

4 days Left

Natural Play Of Color Rainbow Fire Red Black Opal Gemstones 1.36 Ct. Oval Cabochon Shape 10.3 x 7

Est.

US$79

-

US$124

US$1

Treasure of Gems & JewelryLake Charles, LA

1.30 Carats Natural Black Opal - 10X8X4 mm: 1.30 Carats Natural Black Opal - 10X8X4 mm Shipping:

5 days Left

1.30 Carats Natural Black Opal - 10X8X4 mm

Est.

US$200

-

US$300

US$20

Fantasy JewelryMuscat, AE

3.00ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 56BY: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 12x9x5mm. The black smoke treatment deepens

41 mins Left

3.00ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 56BY

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

1.10 Carats Natural Black Opal - 10X7X4 mm: 1.10 Carats Natural Black Opal - 10X7X4 mm Shipping:

5 days Left

1.10 Carats Natural Black Opal - 10X7X4 mm

Est.

US$200

-

US$300

US$20

Fantasy JewelryMuscat, AE

2.54ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 54BY: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 14x9x4mm. The black smoke treatment deepens

41 mins Left

2.54ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 54BY

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

1.67ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 64FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10x8x4mm. The black smoke treatment deepens

41 mins Left

1.67ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 64FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

2.44ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 6FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11x8x5mm. The black smoke treatment deepens

41 mins Left

2.44ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 6FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

1.49ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 94WP: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10.0x7.5x4.3mm. The black smoke treatment de

24 hrs Left

1.49ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 94WP

Est.

US$10

-

US$200

US$10

Lazo HeritageSathorn, Bangkok

2.00ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 39FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 11x8x4mm. The black smoke treatment deepens

41 mins Left

2.00ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 39FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

1.43ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 47FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10x8x3mm. The black smoke treatment deepens

41 mins Left

1.43ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 47FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

1.78ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 59FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 14x7x2mm. The black smoke treatment deepens

41 mins Left

1.78ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 59FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

0.93 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 0.93 Ct / Size - 8.70 x 6.60 x 3.40 mm / Shape - Oval Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Aug 19, 2026

0.93 Ct Natural Black Flashing Fire Opal Oval Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

1.41ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 68FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10x9x3mm. The black smoke treatment deepens

41 mins Left

1.41ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 68FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

2.30ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 38FX: This fully polished Ethiopian Welo opal features a dark smoked base with vivid, sweeping play-of-color shifting across its glossy dome surface, measured at 10x7x5mm. The black smoke treatment deepens

41 mins Left

2.30ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 38FX

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

3.41 Ct Natural Black Flashing Fire Opal Pear Cab Pair: Weight - 3.41 Ct / Dimensions - 11.10 x 7.20 x 4.50 mm / 2 PC's / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Buy Now

3.41 Ct Natural Black Flashing Fire Opal Pear Cab Pair

US$46

Gems AuctionBangkok, TH

1.74 Ct Natural Black Flashing Fire Opal Cushion Cut: Weight - 1.74 Ct / Size - 12.40 x 7.30 x 4.30 mm / Shape - Cushion Cut / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Aug 19, 2026

1.74 Ct Natural Black Flashing Fire Opal Cushion Cut

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

1.50 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 1.50 Ct / Dimensions - 10.40x 7.70 x 4.00 mm / Shape - Oval Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Aug 19, 2026

1.50 Ct Natural Black Flashing Fire Opal Oval Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

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