Results for “Opal Gemstones”

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FEATURED

1.86ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 8FX: 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 11x7x4mm. The black smoke treatment deepens

1 day Left

1.86ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 8FX

Est.

$10

-

$200

$10

ThousandPlanetSathorn, Bangkok

FEATURED

8.45ct Natural Unheated Burmese Blue Star Sapphire Loose Gemstone Parcel, 84BZ: This parcel consists of natural unheated blue star sapphire sourced from Myanmar. The material showcases cool blue body tones together with natural internal silk inclusions responsible for the star op

1 day Left

8.45ct Natural Unheated Burmese Blue Star Sapphire Loose Gemstone Parcel, 84BZ

Est.

$20

-

$200

$20

ThousandPlanetSathorn, Bangkok

FEATURED

$8.66ct Natural Unheated Burmese Star Ruby Loose Gemstone Parcel, 93FL: This parcel features natural unheated star ruby originating from Myanmar. The material displays soft pink to rich crimson hues with natural crystalline fractures and mineral traces inherent to Burmese$

5 hrs Left

8.66ct Natural Unheated Burmese Star Ruby Loose Gemstone Parcel, 93FL

Est.

$20

-

$200

$5

ThousandPlanetSathorn, Bangkok

FEATURED

3.24ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 51BY: 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 14x10x4mm. The black smoke treatment deepens

5 hrs Left

3.24ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 51BY

Est.

$20

-

$200

$15

ThousandPlanetSathorn, Bangkok

Natural Multi-Color Opal Gemstones 6.12 Ct. Carving Size 17.1 x 17.6 x 4.7 Mm.: Product ID: 818720292 Product Name: Natural Opal Carving Weight: 6.12 CT. Size: 17.1 x 17.6 x 4.7 MM. Shape: Butterfly Carving Color: Multi Color Clarity:Opaque Luster: Strong Iridescent Gems Origin:

2 days Left

Natural Multi-Color Opal Gemstones 6.12 Ct. Carving Size 17.1 x 17.6 x 4.7 Mm.

Est.

$209

-

$329

$1

Treasure of Gems & JewelryLake Charles, LA

Natural Multi-Color Play Of Colour Opal Gemstones 2.68 Ct. 5 Pcs. Oval Cabochon Shape 7.4 x 5 Mm.: Product ID: 818728334 Product Name: Natural Opal Weight: 2.68 CT. Size: 7.4 x 5 x 4.2 to 6.5 x 5.4 x 3.1 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:None Luster: Good Gems Origin: Ethiopia Tre

Aug 16, 2026

Natural Multi-Color Play Of Colour Opal Gemstones 2.68 Ct. 5 Pcs. Oval Cabochon Shape 7.4 x 5 Mm.

Est.

$57

-

$90

$9

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 1.40 Ct. Oval Cabochon Shape 10 x 7 Mm.: Product ID: 818709314 Product Name: Natural Opal Weight: 1.40 CT. Size: 10 x 7 x 4.3 MM. Shape: Oval Cabochon Color: Multi Color Clarity:Opaque Luster: Strong Iridescent Gems Origin: Ethiopia Treatmen

2 days Left

Natural Multi Color Opal Gemstones 1.40 Ct. Oval Cabochon Shape 10 x 7 Mm.

Est.

$71

-

$111

$1

Treasure of Gems & JewelryLake Charles, LA

14K Yellow Gold Gemstone Jewelry Set Earrings Brooch with Diamonds Sapphires Pearls Opals: 14K Yellow Gold Gemstone Jewelry Set Earrings Brooch with Diamonds Sapphires Pearls Opals Presenting a stunning jewelry set featuring a pair of earrings and a brooch, crafted in 14K yellow gold. This

2 days Left

14K Yellow Gold Gemstone Jewelry Set Earrings Brooch with Diamonds Sapphires Pearls Opals

Est.

$1,417

-

$1,842

$100

BidhausNew York, NY

Vintage 14k Yellow Gold Black Opal Cufflinks Natural Gemstones: Vintage 14k Yellow Gold Black Opal Cufflinks Natural Gemstones Elevate your style with these vintage cufflinks, expertly crafted from 14k solid yellow gold. Each cufflink features a stunning natural b

4 days Left

Vintage 14k Yellow Gold Black Opal Cufflinks Natural Gemstones

Est.

$2,821

-

$3,667

$100

BidhausNew York, NY

Natural Multi Color Play Of Colour Opal Gemstones 2.70 Ct. Pear Cabochon Shape 18.5 x 9 Mm.: Product ID: 818728537 Product Name: Natural Opal Weight: 2.70 CT. Size: 18.5 x 9 x 3.5 MM. Shape: Pear Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatme

Aug 23, 2026

Natural Multi Color Play Of Colour Opal Gemstones 2.70 Ct. Pear Cabochon Shape 18.5 x 9 Mm.

Est.

$62

-

$98

$1

Treasure of Gems & JewelryLake Charles, LA

Natural Multi-Color Play Of Colour Opal Gemstones 20.64 Ct. Oval Shape 21 x 17 Mm.: Product ID: 118701257 Product Name: Natural Opal Weight: 20.64 CT. Size: 21 x 17.7 x 11.8 MM. Shape: Oval Color: Orange Clarity:IF Luster: Good Gems Origin: Mexico Treatment: Unheated Crystal Structur

Aug 16, 2026

Natural Multi-Color Play Of Colour Opal Gemstones 20.64 Ct. Oval Shape 21 x 17 Mm.

Est.

$118

-

$186

$1

Treasure of Gems & JewelryLake Charles, LA

Natural Fire Red Black Opal Gemstones 0.63 Ct. Round Cabochon Shape 6.8 Mm.: Product ID: 818724373 Product Name: Natural Opal Weight: 0.63 CT. Size: 6.8 x 6.8 x 3.3 MM. Shape: Round Cabochon Color: Rainbow Fire Red Black Clarity:Semi - Transparent Luster: Strong Iridescent Gem

2 days Left

Natural Fire Red Black Opal Gemstones 0.63 Ct. Round Cabochon Shape 6.8 Mm.

Est.

$42

-

$66

$8

Treasure of Gems & JewelryLake Charles, LA

FEATURED

4.76 Carats Natural Soft Lilac Kunzite Faceted Loose Gemstone, 7WW: This kunzite forms within natural pegmatite mineral deposits and receives precise faceting and mirror-like high gloss polishing through professional lapidary processing. Subtle faint internal crystall

1 day Left

4.76 Carats Natural Soft Lilac Kunzite Faceted Loose Gemstone, 7WW

Est.

$25

-

$200

$25

Lazo HeritageSathorn, Bangkok

FEATURED

17.54ct Natural Brazilian London Blue Topaz Oval Faceted Loose Gemstone, 98BZ: This precisely cut oval faceted gemstone is natural London Blue Topaz originating from Brazil. The stone showcases an intense, rich deep royal blue hue, complemented by crisp, symmetrical faceting tha

5 hrs Left

17.54ct Natural Brazilian London Blue Topaz Oval Faceted Loose Gemstone, 98BZ

Est.

$35

-

$200

$5

ThousandPlanetSathorn, Bangkok

FEATURED

4.13 Carats Natural Swiss Blue Topaz Loose Gemstone, 99WJ: This genuine natural swiss blue topaz displays consistent saturated blue coloration inherent to unprocessed natural mineral specimens. Formed through natural geological formation, the stone carries su

1 day Left

4.13 Carats Natural Swiss Blue Topaz Loose Gemstone, 99WJ

Est.

$25

-

$200

$25

Lazo HeritageSathorn, Bangkok

FEATURED

14.76ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 16BY: This smoothly polished cabochon is genuine natural Ethiopian Welo opal. The translucent base hosts vivid multi-coloured play-of-colour, displaying dynamic flashes of multi color that shift as the view

1 day Left

14.76ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 16BY

Est.

$25

-

$200

$25

ThousandPlanetSathorn, Bangkok

Natural Multi Color Ridge Matrix Boulder Opal Gemstones 2.80 Ct. Free Form Cabochon 11.8 x 7 Mm.: Product ID: 818707083 Product Name: Natural Opal Weight: 2.80 CT. Size: 11.8 x 7 x 4 MM. Shape: Free Form Cabochon Color: Multi-Color Clarity:Opaque Luster: Iridescent Gems Origin: Australia Treatment

2 days Left

Natural Multi Color Ridge Matrix Boulder Opal Gemstones 2.80 Ct. Free Form Cabochon 11.8 x 7 Mm.

Est.

$49

-

$77

$8

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 1.36 Ct. Pear Cabochon Shape 11.5 x 7.5 Mm.: Product ID: 818728540 Product Name: Natural Opal Weight: 1.36 CT. Size: 11.5 x 7.5 x 3.6 MM. Shape: Pear Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Strong Iridescent Gems Origin: E

2 days Left

Natural Multi Color Opal Gemstones 1.36 Ct. Pear Cabochon Shape 11.5 x 7.5 Mm.

Est.

$36

-

$57

$8

Treasure of Gems & JewelryLake Charles, LA

Natural Multi-Color Play Of Colour Opal Gemstones 1.25 Ct. 2 Pcs. Oval Cabochon Shape 7 x 5.5 Mm.: Product ID: 818728283 Product Name: Natural Opal Weight: 1.25 CT. Size: 7 x 5.5 x 3.5 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:None Luster: Good Gems Origin: Ethiopia Treatment: Unheated Cr

2 days Left

Natural Multi-Color Play Of Colour Opal Gemstones 1.25 Ct. 2 Pcs. Oval Cabochon Shape 7 x 5.5 Mm.

Est.

$32

-

$50

$5

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 0.94 Ct. 2 Pcs. Oval Cabochon Shape 6.7 x 4.9 Mm.: Product ID: 818728389 Product Name: Natural Opal Weight: 0.94 CT. Size: 6.7 x 4.9 x 3.5 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatm

2 days Left

Natural Multi Color Opal Gemstones 0.94 Ct. 2 Pcs. Oval Cabochon Shape 6.7 x 4.9 Mm.

Est.

$26

-

$42

$5

Treasure of Gems & JewelryLake Charles, LA

Natural Multi-Color Play Of Colour Opal Gemstones 0.90 Ct. Oval Cabochon Shape 8.6 x 7 Mm.: Product ID: 818728299 Product Name: Natural Opal Weight: 0.90 CT. Size: 8.6 x 7 x 3.6 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:None Luster: Good Gems Origin: Ethiopia Treatment: Unheated Cr

2 days Left

Natural Multi-Color Play Of Colour Opal Gemstones 0.90 Ct. Oval Cabochon Shape 8.6 x 7 Mm.

Est.

$26

-

$41

$4

Treasure of Gems & JewelryLake Charles, LA

Opal and Gemstone Sterling Silver Ring Size 9 Box Included: Opal and Gemstone Sterling Silver Ring Size 9 Box Included

Aug 18, 2026

Opal and Gemstone Sterling Silver Ring Size 9 Box Included

Est.

$40

-

$120

$10

Golden Age Jewelry AuctionsUrbana, OH

Natural Multi Color Opal Gemstones 5.55 Ct. Oval Shape 16 x 10 Mm.: Product ID: 818709060 Product Name: Natural Opal Weight: 5.55 CT. Size: 16 x 10 x 7.3 MM. Shape: Oval Color: Multi Color Clarity:Semi - Transparent Luster: Strong Iridescent Gems Origin: Ethiopia Trea

2 days Left

Natural Multi Color Opal Gemstones 5.55 Ct. Oval Shape 16 x 10 Mm.

Est.

$469

-

$738

$1

Treasure of Gems & JewelryLake Charles, LA

Natural Multi-Color Opal Gemstone 2.27 Ct. Oval Cabochon Shape 11.7 x 8 Mm.: Product ID: 708700055 Product Name: Natural Opal Weight: 2.27 CT. Size: 11.7 x 8 x 5 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Opaque Luster: Strong Iridescent Gems Origin: Ethiopia Treatmen

2 days Left

Natural Multi-Color Opal Gemstone 2.27 Ct. Oval Cabochon Shape 11.7 x 8 Mm.

Est.

$66

-

$103

$10

Treasure of Gems & JewelryLake Charles, LA

FEATURED

Certified 1.83 Carats Orange Natural Ceylon Sapphire Single Oval Faceted Cut Gemstone, LZ848: This single oval faceted natural sapphire features rich solid orange color with even saturation across its 8.07 mm X 5.99 mm X 3.79 mm dimensions, balanced oval faceting maximizes light return to deli

1 day Left

Certified 1.83 Carats Orange Natural Ceylon Sapphire Single Oval Faceted Cut Gemstone, LZ848

Est.

$45

-

$200

$45

Lazo HeritageSathorn, Bangkok

Natural Multi-Color Opal Gemstone 2.83 Ct. Oval Cabochon Shape 13.5 x 9.3 Mm.: Product ID: 708700103 Product Name: Natural Opal Weight: 2.83 CT. Size: 13.5 x 9.3 x 5.4 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Opaque Luster: Strong Iridescent Gems Origin: Ethiopia Trea

2 days Left

Natural Multi-Color Opal Gemstone 2.83 Ct. Oval Cabochon Shape 13.5 x 9.3 Mm.

Est.

$69

-

$108

$10

Treasure of Gems & JewelryLake Charles, LA

Natural Multi-Color Play Of Colour Opal Gemstones 2.27 Ct. 5 Pcs. Oval Cabochon Shape 6.5 x 5.2 Mm.: Product ID: 818728338 Product Name: Natural Opal Weight: 2.27 CT. Size: 6.5 x 5.2 x 2.5 to 6.2 x 5.2 x 2.8 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:None Luster: Good Gems Origin: Ethiopia T

2 days Left

Natural Multi-Color Play Of Colour Opal Gemstones 2.27 Ct. 5 Pcs. Oval Cabochon Shape 6.5 x 5.2 Mm.

Est.

$50

-

$78

$8

Treasure of Gems & JewelryLake Charles, LA

Opal And Blue Gemstone Pendant Gold Plated Sterling Silver Necklace 18 Inch Chain: Opal And Blue Gemstone Pendant Gold Plated Sterling Silver Necklace 18 Inch Chain

Aug 18, 2026

Opal And Blue Gemstone Pendant Gold Plated Sterling Silver Necklace 18 Inch Chain

Est.

$40

-

$120

$14

Golden Age Jewelry AuctionsUrbana, OH

2.09ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 50FX: 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

5 hrs Left

2.09ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 50FX

Est.

$20

-

$200

$5

ThousandPlanetSathorn, Bangkok

2.35ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 22FX: 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

5 hrs Left

2.35ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 22FX

Est.

$20

-

$200

$5

ThousandPlanetSathorn, Bangkok

Natural Multi-Color Play Of Colour Opal Gemstones 1.91 Ct. 2 Pcs. Oval Cabochon Shape 8.2 x 6 Mm.: Product ID: 818728315 Product Name: Natural Opal Weight: 1.91 CT. Size: 8.2 x 6 x 4.4 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:None Luster: Good Gems Origin: Ethiopia Treatment: Unheated Cr

2 days Left

Natural Multi-Color Play Of Colour Opal Gemstones 1.91 Ct. 2 Pcs. Oval Cabochon Shape 8.2 x 6 Mm.

Est.

$50

-

$79

$7

Treasure of Gems & JewelryLake Charles, LA

Natural Multi-Color Opal Gemstone 2.40 Ct. Oval Cabochon Shape 11 x 8.5 Mm: Product ID: 708700085 Product Name: Natural Opal Weight: 2.40 CT. Size: 11 x 8.5 x 5.5 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Opaque Luster: Strong Iridescent Gems Origin: Ethiopia Treatm

2 days Left

Natural Multi-Color Opal Gemstone 2.40 Ct. Oval Cabochon Shape 11 x 8.5 Mm

Est.

$50

-

$79

$9

Treasure of Gems & JewelryLake Charles, LA

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