Opal

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59.50ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 29AY: 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

59.50ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 29AY

ThousandPlanetSathorn, Bangkok

20.21ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 73AV: Hand polished medium-sized rounded rectangular cabochon of natural Queensland matrix boulder opal, featuring rich speckled chocolate ironstone matrix decorated with distinctive layered orbicular golde

2026

20.21ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 73AV

ThousandPlanetSathorn, Bangkok

2.50ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 76AK: 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 13.3x8.6x4.7mm. The black smoke treatment de

2026

2.50ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 76AK

ThousandPlanetSathorn, Bangkok

78.96ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 47AX: 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

78.96ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 47AX

ThousandPlanetSathorn, Bangkok

13.30ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 53AY: 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

13.30ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 53AY

ThousandPlanetSathorn, Bangkok

35.76ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 68AY: 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

35.76ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 68AY

ThousandPlanetSathorn, Bangkok

77.45ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 94AY: 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

77.45ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 94AY

ThousandPlanetSathorn, Bangkok

1.61ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 3FL: 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 10.5x8.5x4.5mm. The black smoke treatment de

2026

1.61ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 3FL

ThousandPlanetSathorn, Bangkok

79.41ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 93AX: 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

79.41ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 93AX

ThousandPlanetSathorn, Bangkok

48.23ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 26AY: 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

48.23ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 26AY

ThousandPlanetSathorn, Bangkok

70.76ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 98AV: 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

70.76ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 98AV

ThousandPlanetSathorn, Bangkok

22.51ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 12AX: 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

22.51ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 12AX

ThousandPlanetSathorn, Bangkok

55.55ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 22AY: 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

55.55ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 22AY

ThousandPlanetSathorn, Bangkok

3.08ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 27FL: 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 14.1x8.3x5mm. The black smoke treatment deep

2026

3.08ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 27FL

ThousandPlanetSathorn, Bangkok

3.17ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 31FL: 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 13.7x10x4.5mm. The black smoke treatment dee

2026

3.17ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 31FL

ThousandPlanetSathorn, Bangkok

1.83ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 6FL: 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 12.4x7.5x3.5mm. The black smoke treatment de

2026

1.83ct Natural Ethiopian Welo Black Smoked Opal Cabochon Loose Gemstone, 6FL

ThousandPlanetSathorn, Bangkok

56.50ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 78AX: 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

56.50ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 78AX

ThousandPlanetSathorn, Bangkok

70.16ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 91AV: 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

70.16ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 91AV

ThousandPlanetSathorn, Bangkok

61.80ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 89AV: 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

61.80ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 89AV

ThousandPlanetSathorn, Bangkok

18ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 71AV: Hand polished medium rounded rectangular cabochon of natural Queensland matrix boulder opal, featuring gradient warm caramel and dark chocolate ironstone matrix with swirling layered orbicular golden

2026

18ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 71AV

ThousandPlanetSathorn, Bangkok

56.22ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 65AX: 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

56.22ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 65AX

ThousandPlanetSathorn, Bangkok

Natural Multi-Color Opal Gemstones 0.50 Ct. Marquise Shape 9.9 x 5 Mm.: Product ID: 818719572 Product Name: Natural Opal Weight: 0.50 CT. Size: 9.9 x 5 x 2.7 MM. Shape: Marquise Color: Multi color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatment: Un

2026

Natural Multi-Color Opal Gemstones 0.50 Ct. Marquise Shape 9.9 x 5 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 1.74 Ct. 2 Pcs. Round Cabochon Shape 7 Mm.: Product ID: 818728201 Product Name: Natural Opal Weight: 1.74 CT. Size: 7 x 7 x 4 MM. Shape: Round Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatment: Unheated

2026

Natural Multi Color Opal Gemstones 1.74 Ct. 2 Pcs. Round Cabochon Shape 7 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Multi Color Opal Gemstones 1.53 Ct. Oval Cabochon Shape 11.4 x 7.9 Mm.: Product ID: 818725610 Product Name: Natural Opal Weight: 1.53 CT. Size: 11.4 x 7.9 x 3.8 MM. Shape: Oval Cabochon Color: Multi-Color Clarity:Opaque Luster: Iridescent Gems Origin: Ethiopia Treatment:

2026

Natural Multi Color Opal Gemstones 1.53 Ct. Oval Cabochon Shape 11.4 x 7.9 Mm.

Treasure of Gems & JewelryLake Charles, LA

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24

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

3 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

2 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

4 days Left

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