Opal

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4.92ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 27BY: 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

2026

4.92ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 27BY

ThousandPlanetSathorn, Bangkok

2.74ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 23FX: 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 12x7x5mm. The black smoke treatment deepens

2026

2.74ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 23FX

ThousandPlanetSathorn, Bangkok

Natural Multi Color Opal Gemstones 1.18 Ct. Round Shape 7.8 Mm.: Product ID: 818707343 Product Name: Natural Opal Weight: 1.18 CT. Size: 7.8 x 7.8 x 5.1 MM. Shape: Round Color: Multi Color Clarity:Opaque Luster: Good Gems Origin: Ethiopia Treatment: Unheated Crysta

2026

Natural Multi Color Opal Gemstones 1.18 Ct. Round Shape 7.8 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 1.37 Ct. Oval Shape 9 x 7.3 Mm.: Product ID: 818711862 Product Name: Natural Opal Weight: 1.37 CT. Size: 9 x 7.3 x 4.6 MM. Shape: Oval Color: Multi Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatment: Unheat

2026

Natural Multi Color Opal Gemstones 1.37 Ct. Oval Shape 9 x 7.3 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Opal Multi Color Gemstones 2.24 Ct. Oval Cabochon 11.7 x 8.3 Mm.: Product ID: 818727480 Product Name: Natural Opal Weight: 2.24 CT. Size: 11.7 x 8.3 x 5.3 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Iridescent Gems Origin: Ethiopia

2026

Natural Opal Multi Color Gemstones 2.24 Ct. Oval Cabochon 11.7 x 8.3 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 2.41 Ct. Oval Cabochon Shape 14.3 x 9.5 Mm.: Product ID: 818728483 Product Name: Natural Opal Weight: 2.41 CT. Size: 14.3 x 9.5 x 3.9 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treat

2026

Natural Multi Color Opal Gemstones 2.41 Ct. Oval Cabochon Shape 14.3 x 9.5 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Play Of Colour Opal Gemstones 1.61 Ct. Oval Cabochon Shape 10.3 x 8 Mm.: Product ID: 818728472 Product Name: Natural Opal Weight: 1.61 CT. Size: 10.3 x 8 x 4.5 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatme

2026

Natural Multi Color Play Of Colour Opal Gemstones 1.61 Ct. Oval Cabochon Shape 10.3 x 8 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 1.83 Ct. Pear Cabochon Shape 11.8 x 7.9 Mm.: Product ID: 818728535 Product Name: Natural Opal Weight: 1.83 CT. Size: 11.8 x 7.9 x 4.4 MM. Shape: Pear Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treat

2026

Natural Multi Color Opal Gemstones 1.83 Ct. Pear Cabochon Shape 11.8 x 7.9 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Fire Red Black Opal Gemstones 0.65 Ct. Oval Cabochon Shape 9.3 x 6 Mm.: Product ID: 818725497 Product Name: Natural Opal Weight: 0.65 CT. Size: 9.3 x 6 x 2.6 MM. Shape: Oval Cabochon Color: Rainbow Fire Red Black Clarity:Opaque Luster: Iridescent Gems Origin: Ethiopia Tre

2026

Natural Fire Red Black Opal Gemstones 0.65 Ct. Oval Cabochon Shape 9.3 x 6 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Play Of Colour Opal Gemstones 2.93 Ct. Pear Cabochon Shape 14.5 x 9.5 Mm.: Product ID: 818728532 Product Name: Natural Opal Weight: 2.93 CT. Size: 14.5 x 9.5 x 5.3 MM. Shape: Pear Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treat

2026

Natural Multi Color Play Of Colour Opal Gemstones 2.93 Ct. Pear Cabochon Shape 14.5 x 9.5 Mm.

Treasure of Gems & JewelryLake Charles, LA

1.82ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 45FX: 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

2026

1.82ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 45FX

ThousandPlanetSathorn, Bangkok

Chevron Turquoise & Opal Like Southwest Necklace: Southwest Zuni style necklace chevron formed necklace with turquoise like placards inlaid with opal like lines. With lobster clasp closure. Length: 18 in. Gross weight: 20.8 g.

2026

Chevron Turquoise & Opal Like Southwest Necklace

Loon EstatesSaint Paul, MN

16.18 Ct Natural Blue Opal Round Beads: Weight - 16.18 Ct / Dimensions - 6.80 - 7.00 mm / 18 Pc's / Shape - Round Beads / Clarity - Opaque / Origin - Peru / Treatment - None

2026

16.18 Ct Natural Blue Opal Round Beads

Gems AuctionBangkok, TH

2.55 Ct Natural Multicolor Welo Opal Round Beads: Weight - 2.55 Ct / Dimensions - 4.30 - 4.70 mm / 6 Pc's / Shape & Cut - Round Beads / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

2.55 Ct Natural Multicolor Welo Opal Round Beads

Gems AuctionBangkok, TH

5.36 Ct Natural Blue Fire Opal Round Beads: Weight - 5.36 Ct / Size -5.10 - 5.40 mm / 13 Pc's / Shape - Round Beads / Color - Blue / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

2026

5.36 Ct Natural Blue Fire Opal Round Beads

Gems AuctionBangkok, TH

23.90 Ct Natural Green Swiss Opal Oval Cab: weight - 23.90 Ct / Dimensions - 30.00 x 18.60 x 5.30 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

2026

23.90 Ct Natural Green Swiss Opal Oval Cab

Gems AuctionBangkok, TH

20.45 Ct Natural Green Swiss Opal Fancy Cab: weight - 20.45 Ct / Dimensions - 28.00 x 19.50 x 5.30 mm / Shape - Excellent Fancy Cab / Origin - Brazil / Treatment - None

2026

20.45 Ct Natural Green Swiss Opal Fancy Cab

Gems AuctionBangkok, TH

2.23 Ct Natural Multicolor Welo Opal Oval Cab Set: Weight - 2.23 Ct / Dimensions - 7.0x5.0 - 7.2x5.2 mm / 4 Pc's / Shape & Cut - Oval Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

2.23 Ct Natural Multicolor Welo Opal Oval Cab Set

Gems AuctionBangkok, TH

6.42 Ct Natural Pink Opal Round Beads: Weight - 6.42 Ct / Dimensions - 5.20 - 5.90 mm / 12 Pc's / Shape - Round Beads / Clarity - Opaque / Origin - Peru / Comments - Color Coated

2026

6.42 Ct Natural Pink Opal Round Beads

Gems AuctionBangkok, TH

11.37 Ct Natural Green Opal Fancy Cab: weight - 11.37 Ct / Size -24.10 x 13.10 x 4.10 mm / Shape - Excellent Fancy Cab / Origin - Brazil / Treatment - None

2026

11.37 Ct Natural Green Opal Fancy Cab

Gems AuctionBangkok, TH

12.46 Ct Natural Dendrite Opal Pear Cab: Weight - 12.46 Ct / Size - 25.00 x 22.00 x 4.00 mm / Shape - Excellent Pear Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

12.46 Ct Natural Dendrite Opal Pear Cab

Gems AuctionBangkok, TH

19.80 Ct Natural Blue Opal Oval cab: Weight - 19.80 Ct / Dimensions - 30.00 x 18.00 x 6.70 mm / Shape - Oval cab / Color - Blue / Clarity - Opaque / Origin -Brazil / Treatment - None

2026

19.80 Ct Natural Blue Opal Oval cab

Gems AuctionBangkok, TH

11.92 Ct Natural Green Opal Pear Cab: weight - 11.92 Ct / Size - 26.00 x 13.70 x 4.20 mm / Shape - Excellent Pear Cab / Origin - Brazil / Treatment - None

2026

11.92 Ct Natural Green Opal Pear Cab

Gems AuctionBangkok, TH

3.94 Ct Natural Multicolor Welo Opal Flash Fire Round Beads: Weight - 3.94 Ct / Dimensions -5.20 - 5.50 mm / 10. Pc's / Shape & Cut - Round Beads / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

2026

3.94 Ct Natural Multicolor Welo Opal Flash Fire Round Beads

Gems AuctionBangkok, TH

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Opal Auctions

1.97Ct Welo Black Faceted Opal Polished - Ethiopian Opal , 445E

29.90Ct Moss Agate Cabochon - Polished - 31x21mm Approx , 320E

Australian Lightning Ridge Crystal Black Opal Rough Chip Jar (Good For Display), 344B

The Aurora Treasury Gems & Jewels #3

Ksmith Heritage Auctioneers

Starts on:

Jelutong, Penang, MY

4 days Left

6.40 Cts Natural amethyst Gemstone - 12X10.5X8 mm

1.25 Carats Deep Blue Natural Aquamarine Loose Gemstone - 9X6X4 mm

Baby Pink Top quality Natural Kunzite loose Gemstone - 3.25 Carats - 9X8.5X6 mm

NO RESERVE Loose Gemstones

Fantasy Jewelry

Starts on:

Muscat, Muscat, AE

3 days Left

Impressive Mid Century Viking Epic Stockholm Smoke Pine Gray Lotus Wayne Husted Art Glass Vase

GIVENCHY Vintage Designer Matte Silver G Cutout Necklace, Bracelet & Pierced Earrings Ensemble

Vintage Jewelry, Early Christmas & Unusual

Atlee Raber Auctions

Starts on:

Dundee, OH, US

5 days Left

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