Opal

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2.78ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 32FX: 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

2026

2.78ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 32FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.14ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 31FX: 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 10x8x5mm. The black smoke treatment deepens

2026

2.14ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 31FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

1.64ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 16FX: 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 10x7x4mm. The black smoke treatment deepens

2026

1.64ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 16FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

1.64ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 2FX: 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

2026

1.64ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 2FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

1.85ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 40FX: 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 10x8x5mm. The black smoke treatment deepens

2026

1.85ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 40FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

70.48ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 48AX: 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

70.48ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 48AX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

3.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 37BY: 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 13x8x7mm. The black smoke treatment deepens

2026

3.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 37BY

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 72FX: 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 12x8x4mm. The black smoke treatment deepens

2026

2.18ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 72FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

1.93ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 76FX: 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 9x5mm. The black smoke treatment deepens the

2026

1.93ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 76FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.33ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 65FX: 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 10x8x5mm. The black smoke treatment deepens

2026

2.33ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 65FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

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

2026

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

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.48ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 73AK: 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 13.4x7.8x5.1mm. The black smoke treatment de

2026

2.48ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 73AK

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.44ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 74FX: 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

2026

2.44ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 74FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

1.62ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 33EJ: 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 10.7x8x3.5mm. The black smoke treatment deep

2026

1.62ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 33EJ

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.26ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 79FX: 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 12x8x4mm. The black smoke treatment deepens

2026

2.26ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 79FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

1.85ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 80FX: 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 12x7x4mm. The black smoke treatment deepens

2026

1.85ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 80FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.10ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 63FX: 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

2026

2.10ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 63FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

1.94ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 35FX: 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 9x4mm. The black smoke treatment deepens the

2026

1.94ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 35FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

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

2026

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

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.26ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 60FX: 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

2026

2.26ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 60FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.70ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 33FX: 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

2026

2.70ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 33FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.21ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 19FX: 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 11x10x4mm. The black smoke treatment deepens

2026

2.21ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 19FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

2.27ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 20FX: 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

2026

2.27ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 20FX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

51.22ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 89AX: 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

51.22ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 89AX

Sathorn, Bangkok

ThousandPlanet

4.5

(315)

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Opal Auctions

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

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

0.95 Carats Natural Yellow Sapphire Gemstone - 6X5X3 mm

3.80 Carats Natural Santa Maria Aquamarine - 11X9X8 mm

7.20 Carats Paired Peridot Gemstones ? 9?8?6 mm Natural Pair

Natural Loose Gemstones Starting at $50

Fantasy Jewelry

Starts on:

Muscat, Muscat, AE

4 days Left

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