Opal

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21.38ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 86YL: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

21.38ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 86YL

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

61.50ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 100YL: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

61.50ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 100YL

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

1.75 Carats Natural Ethiopian Welo Blue Fire Opal Oval Faceted Loose Gemstone, 92TS: This opal material is mined from the Welo deposits of Ethiopia and processed with professional faceted lapidary work with uniform polished facets across the gem surface. Natural subtle internal textur

2026

1.75 Carats Natural Ethiopian Welo Blue Fire Opal Oval Faceted Loose Gemstone, 92TS

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

Multi Color Blue Created Opal Cross 925 Sterling Silver Pendant Jewelry 3.03 G.: Product ID: 280130020 Product Type: 925 Sterling Silver Fine Jewelry Jewelry Weight: 3.03 Grams. Gemstones Color: Multi-Color Metal: Solid Silver 92.5%. Gemstone Detail: Multi Color Blue Created Opal

2026

Multi Color Blue Created Opal Cross 925 Sterling Silver Pendant Jewelry 3.03 G.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi Color Play Of Colour Opal Gemstones 1.57 Ct. Oval Cabochon Shape 9.2 x 7.2 Mm.: Product ID: 818725328 Product Name: Natural Opal Weight: 1.57 CT. Size: 9.2 x 7.2 x 4.4 MM. Shape: Oval Cabochon Color: Multi Color Clarity:Semi - Transparent Luster: Iridescent Gems Origin: Ethiopia

2026

Natural Multi Color Play Of Colour Opal Gemstones 1.57 Ct. Oval Cabochon Shape 9.2 x 7.2 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi Color Opal Gemstones 2.20 Ct. 2 Pcs. Round Cabochon Shape 7.1 Mm.: Product ID: 818728242 Product Name: Natural Opal Weight: 2.20 CT. Size: 7.1 x 7.1 x 4.5 MM. Shape: Round Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatment: Unh

2026

Natural Multi Color Opal Gemstones 2.20 Ct. 2 Pcs. Round Cabochon Shape 7.1 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi Color Opal Gemstones 1.65 Ct. 5 Pcs. Oval Cabochon Shape 6.1 x 4.2 Mm.: Product ID: 818728090 Product Name: Natural Opal Weight: 1.65 CT. Size: 6.1 x 4.2 x 2.9 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatm

2026

Natural Multi Color Opal Gemstones 1.65 Ct. 5 Pcs. Oval Cabochon Shape 6.1 x 4.2 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi-Color Opal Gemstones 1.72 Ct. 3 Pcs. Oval Cabochon Shape 6.9 x 5 Mm.: Product ID: 818728310 Product Name: Natural Opal Weight: 1.72 CT. Size: 6.9 x 5 x 3.3 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:None Luster: Good Gems Origin: Ethiopia Treatment: Unheated Cr

2026

Natural Multi-Color Opal Gemstones 1.72 Ct. 3 Pcs. Oval Cabochon Shape 6.9 x 5 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi Color Play Of Colour Opal Gemstones 3.40 Ct. Baguette Cabochon Shape 18.2 x 7.1 Mm.: Product ID: 818728449 Product Name: Natural Opal Weight: 3.40 CT. Size: 18.2 x 7.1 x 5 MM. Shape: Baguette Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Tre

2026

Natural Multi Color Play Of Colour Opal Gemstones 3.40 Ct. Baguette Cabochon Shape 18.2 x 7.1 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi-Color Play Of Colour Opal Gemstone 2.63 Ct. Pear Cabochon Shape 10.6 x 9.8 Mm.: Product ID: 708700128 Product Name: Natural Opal Weight: 2.63 CT. Size: 10.6 x 9.8 x 6 MM. Shape: Pear Cabochon Color: Multi-Color Clarity:Opaque Luster: Good Gems Origin: Ethiopia Treatment: Unheated

2026

Natural Multi-Color Play Of Colour Opal Gemstone 2.63 Ct. Pear Cabochon Shape 10.6 x 9.8 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi-Color Play Of Colour Opal Gemstone 5.72 Ct. Oval Cabochon Shape 14.5 x 10.5 Mm.: Product ID: 708700045 Product Name: Natural Opal Weight: 5.72 CT. Size: 14.5 x 10.5 x 7.5 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Opaque Luster: Good Gems Origin: Ethiopia Treatment: Unhea

2026

Natural Multi-Color Play Of Colour Opal Gemstone 5.72 Ct. Oval Cabochon Shape 14.5 x 10.5 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi Color Play Of Colour Opal Gemstones 1.87 Ct. Pear Cabochon Shape 13 x 7.8 Mm.: Product ID: 818728562 Product Name: Natural Opal Weight: 1.87 CT. Size: 13 x 7.8 x 4.4 MM. Shape: Pear Cabochon Shape Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia T

2026

Natural Multi Color Play Of Colour Opal Gemstones 1.87 Ct. Pear Cabochon Shape 13 x 7.8 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi Color Play Of Colour Opal Gemstones 2.63 Ct. Oval Cabochon Shape 12.5 x 8.8 Mm.: Product ID: 818728585 Product Name: Natural Opal Weight: 2.63 CT. Size: 12.5 x 8.8 x 5.6 MM. Shape: Oval Cabochon Shape Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia

2026

Natural Multi Color Play Of Colour Opal Gemstones 2.63 Ct. Oval Cabochon Shape 12.5 x 8.8 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Natural Multi-Color Play Of Colour Opal Gemstone 1.98 Ct. Oval Cabochon Shape 12.8 x 8.5 Mm.: Product ID: 708700223 Product Name: Natural Opal Weight: 1.98 CT. Size: 12.8 x 8.5 x 4.5 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Opaque Luster: Good Gems Origin: Ethiopia Treatment: Unheat

2026

Natural Multi-Color Play Of Colour Opal Gemstone 1.98 Ct. Oval Cabochon Shape 12.8 x 8.5 Mm.

Lake Charles, LA

Treasure of Gems & Jewelry

4.5

(270)

Opal and Sterling Silver Necklace: Sterling Silver vintage filigree necklace with central ?floating opal? pendant.

2026

Opal and Sterling Silver Necklace

York, PA

Keystone Auction LLC

4.6

(1k)

355ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 63EX: This sliced rough parcel features multiple boulder opal slices displaying striking natural opal colour flashes set within solid ironstone host matrix. The slices exhibit varied patterns including vivi

2026

355ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 63EX

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

465ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 61EX: This sliced rough parcel features multiple boulder opal slices displaying striking natural opal colour flashes set within solid ironstone host matrix. The slices exhibit varied patterns including vivi

2026

465ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 61EX

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

74.45ct Natural Australian Queensland Boulder Opal Cabochon Parcel Lot, 50EX: This polished cabochon parcel features six finished boulder opal cabochons with rich ironstone host matrix interlaced by vivid opal vein patterns. The cabochons display striking earthy brown-orange we

2026

74.45ct Natural Australian Queensland Boulder Opal Cabochon Parcel Lot, 50EX

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

5.77ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 17BY: 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

5.77ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 17BY

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

5.55ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 30BY: 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

5.55ct Natural Ethiopian Welo Opal Cabochon Loose Gemstone, 30BY

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

390ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 62EX: This sliced rough parcel features multiple boulder opal slices displaying striking natural opal colour flashes set within solid ironstone host matrix. The slices exhibit varied patterns including vivi

2026

390ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 62EX

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

365ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 66EX: This sliced rough parcel features multiple boulder opal slices displaying striking natural opal colour flashes set within solid ironstone host matrix. The slices exhibit varied patterns including vivi

2026

365ct Natural Australian Queensland Boulder Opal Sliced Rough Parcel Lot, 66EX

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

138.74ct Natural Australian Queensland Boulder Opal Cabochon Parcel Lot, 48EX: This polished cabochon parcel features six finished boulder opal cabochons with rich ironstone host matrix interlaced by vivid opal vein patterns. The cabochons display striking earthy brown-orange we

2026

138.74ct Natural Australian Queensland Boulder Opal Cabochon Parcel Lot, 48EX

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

2.21ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 64BY: 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 13x8x5mm. The black smoke treatment deepens

2026

2.21ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 64BY

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

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Opal Auctions

Rocki Gorman Sterling Silver Multi-Strand Cross Necklace 179.75g

Turquoise Sterling Silver Concho Belt on New Leather 12 Conchos 313.25g

Robert Johnson Navajo Turquoise Cuff

SILVER, STONE & STORY

Kahu Paws Trading LLC

Starts on:

Santa Fe, NM, US

Large Rookwood plaque, Summer, Hurley, 1948, 12 by 14 inches.

Rookwood Vellum, Barn Swallows and Moon, Shirayamadani, 1907.

Rare Rookwood Aerial Blue mug with Polar Bear, Shirayamadani, 1896.

Fall 2026: Rookwood + Art Pottery

Starts on:

Cincinnati, OH, US

IGI Certified 14K Rose Gold 0.96ct Radiant Cut Diamond Ring

Japanese Ju Longevity Calligraphy Hanging Scroll, Signed

Lenci by Helen Konig Scavini Earthenware Sculpture, Ave Maria All-Round

Hudson Valley Antiques Collector Auction

Lion and Unicorn

Starts on:

Hollywood, FL, US

5 days Left

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