Results for “Opal Rocks”

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8.81 Ct Natural Pink Opal Oval Cab Pair: weight - 8.81 Ct / Size - 12.50 x 10.50 x 5.00 mm / 2 Pc's / Shape - Excellent Oval Cab / Origin - Australia / Treatment - None

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8.81 Ct Natural Pink Opal Oval Cab Pair

$30

Gems AuctionBangkok, TH

Natural White Color Opal Gemstones 5.84 Ct. Pear Shape 17.6 x 11 Mm.: Product ID: 818711119 Product Name: Natural Opal Weight: 5.84 CT. Size: 17.6 x 11 x 8.2 MM. Shape: Pear Color: White Clarity:Opaque Luster: Good Gems Origin: Ethiopia Treatment: Unheated Crystal Struc

4 days Left

Natural White Color Opal Gemstones 5.84 Ct. Pear Shape 17.6 x 11 Mm.

Est.

$98

-

$155

$1

Treasure of Gems & JewelryLake Charles, LA

2.38 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 2.38 Ct / Size - 11.90 x 8.60 x 5.90 mm / Shape - Pear Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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2.38 Ct Natural Black Flashing Fire Opal Pear Cab

$38

Gems AuctionBangkok, TH

0.96 Ct Natural Black Flashing Fire Opal Cushion Cab: Weight - 0.96 Ct / Dimensions - 11.20 x 5.40 x 2.80 mm / Shape - Cushion Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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0.96 Ct Natural Black Flashing Fire Opal Cushion Cab

$28

Gems AuctionBangkok, TH

2.60 Ct Natural Multicolor Welo Opal Top Fire Solid Rough: Weight - 2.60 Ct / Size - 10.00 x 7.70 x 6.20 mm / Shape - Solid Rough Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

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2.60 Ct Natural Multicolor Welo Opal Top Fire Solid Rough

$30

Gems AuctionBangkok, TH

2.82 Ct Natural Multicolor Welo Opal Top Fire Solid Rough: Weight - 2.82 Ct / Size - 11.20 x 8.50 x 8.00 mm / Shape - Solid Rough Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

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2.82 Ct Natural Multicolor Welo Opal Top Fire Solid Rough

$30

Gems AuctionBangkok, TH

2.14 Ct Natural Multicolor Welo Opal Top Fire Solid Rough: Weight - 2.14 Ct / Size - 16.50 x 9.80 x 4.00 mm / Shape - Solid Rough Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

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2.14 Ct Natural Multicolor Welo Opal Top Fire Solid Rough

$29

Gems AuctionBangkok, TH

294.72 Carats Natural Solar Quartz Mixed Shape Cabochon Lot, 28WC: This parcel contains six polished natural solar quartz cabochons featuring unique internal dendritic green mineral inclusions, with distinct artistic patterning on every individual stone. These caboch

2 days Left

294.72 Carats Natural Solar Quartz Mixed Shape Cabochon Lot, 28WC

Est.

$25

-

$200

$25

Lazo HeritageSathorn, Bangkok

14.03 Ct Natural Green Swiss Opal Oval Cab: Weight - 14.03 Ct / Dimensions - 25.00 x 14.80 x 3.80 mm / Shape - Oval Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

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14.03 Ct Natural Green Swiss Opal Oval Cab

$24

Gems AuctionBangkok, TH

$7.28ct Natural Multicolor Fire Ethiopian Welo Solid Opal Cabochon Loose Gemstone, 15TG: Formed from natural silica deposits within Ethiopian mineral veins, this solid opal cabochon is expertly polished to a smooth domed surface that fully showcases inherent light refraction properties. T$

2 days Left

7.28ct Natural Multicolor Fire Ethiopian Welo Solid Opal Cabochon Loose Gemstone, 15TG

Est.

$45

-

$200

$45

Lazo HeritageSathorn, Bangkok

Natural Multi Color Opal Gemstones 1.35 Ct. 2 Pcs. Round Cabochon Shape 6.7 Mm.: Product ID: 818728254 Product Name: Natural Opal Weight: 1.35 CT. Size: 6.7 x 6.7 x 3.2 MM. Shape: Round Cabochon Color: Multi-Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treat

4 days Left

Natural Multi Color Opal Gemstones 1.35 Ct. 2 Pcs. Round Cabochon Shape 6.7 Mm.

Est.

$105

-

$165

$4

Treasure of Gems & JewelryLake Charles, LA

4.10 Ct Natural Multicolor Top Fire Opal Solid Rough Cab: Weight - 4.10 Ct / Size - 13.70 x 9.70 x 8.50 mm / Shape - Unshaped Solid Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

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4.10 Ct Natural Multicolor Top Fire Opal Solid Rough Cab

$40

Gems AuctionBangkok, TH

1.90 Ct Natural Multicolor Welo Opal Top Fire Solid Rough: Weight - 1.90 Ct / Size - 9.70 x 6.00 x 5.00 mm / Shape - Solid Rough Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

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1.90 Ct Natural Multicolor Welo Opal Top Fire Solid Rough

$28

Gems AuctionBangkok, TH

22 Carats Natural Pink Green Tourmaline Rough Specimen, 7YS: This is an untreated natural tourmaline mineral specimen formed by long-term geological activity underground, exhibiting blended pink and green color zoning throughout its crystalline composition. Nat

2 days Left

22 Carats Natural Pink Green Tourmaline Rough Specimen, 7YS

Est.

$20

-

$200

$20

Lazo HeritageSathorn, Bangkok

16 Carats Natural Pink Green Tourmaline Rough Specimen, 4YS: This is an untreated natural tourmaline mineral specimen formed by long-term geological activity underground, exhibiting blended pink and green color zoning throughout its crystalline composition. Nat

2 days Left

16 Carats Natural Pink Green Tourmaline Rough Specimen, 4YS

Est.

$15

-

$200

$15

Lazo HeritageSathorn, Bangkok

14 Carats Natural Pink Green Tourmaline Rough Specimen, 10YS: This is an untreated natural tourmaline mineral specimen formed by long-term geological activity underground, exhibiting blended pink and green color zoning throughout its crystalline composition. Nat

2 days Left

14 Carats Natural Pink Green Tourmaline Rough Specimen, 10YS

Est.

$15

-

$200

$15

Lazo HeritageSathorn, Bangkok

6.09 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 84XL: This exceptional Koroit Yowah opal cabochon, calibrated to 17.3x10.7x3.2mm, features a dense, textured ironstone matrix in layered tones of deep chocolate brown, bronze, and jet black. Scattered throu

2 days Left

6.09 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 84XL

Est.

$25

-

$200

$25

Lazo HeritageSathorn, Bangkok

1.29 Ct Natural Multicolor Welo Opal Round Cab Set: Weight - 1.29 Ct / Dimensions - 4.70 - 4.90 mm / 4 Pc's / Shape & Cut - Round Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

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1.29 Ct Natural Multicolor Welo Opal Round Cab Set

$30

Gems AuctionBangkok, TH

43 Carats Natural Pink Green Tourmaline Rough Specimen, 8YS: This is an untreated natural tourmaline mineral specimen formed by long-term geological activity underground, exhibiting blended pink and green color zoning throughout its crystalline composition. Nat

2 days Left

43 Carats Natural Pink Green Tourmaline Rough Specimen, 8YS

Est.

$25

-

$200

$25

Lazo HeritageSathorn, Bangkok

3.05 Carats Tourmaline - Pear Cut Collector Gem , 71WE: This 3.05-carat Tourmaline displays a delicate, pastel hue with a pear cut that highlights its subtle brilliance and exceptional transparency. The gem's soft, almost ethereal glow makes it a unique ca

2 days Left

3.05 Carats Tourmaline - Pear Cut Collector Gem , 71WE

Est.

$20

-

$200

$20

Lazo HeritageSathorn, Bangkok

188ct Natural Type A Burmese Jadeite Jade Sliced Rough, 58YR: This specimen is a sliced rough block of natural Type A Burmese jadeite jade. The interior displays natural colour zoning with visible mineral veining and crystalline patterns typical of unprocessed j

2 days Left

188ct Natural Type A Burmese Jadeite Jade Sliced Rough, 58YR

Est.

$25

-

$200

$25

Lazo HeritageSathorn, Bangkok

Natural Freshwater Pearl - Soft Dusty Rose Taupe Sphere 11mm, 55WE: This natural freshwater pearl presents a sleek symmetrical spherical silhouette wrapped in radiant iridescent nacre, showcasing soft dusty rose merged with gentle taupe overtones across its polished e

2 days Left

Natural Freshwater Pearl - Soft Dusty Rose Taupe Sphere 11mm, 55WE

Est.

$35

-

$200

$35

Lazo HeritageSathorn, Bangkok

4.89 Carats Natural Soft Lilac Kunzite Faceted Loose Gemstone, 5WW: 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

2 days Left

4.89 Carats Natural Soft Lilac Kunzite Faceted Loose Gemstone, 5WW

Est.

$25

-

$200

$25

Lazo HeritageSathorn, Bangkok

6.27 ct Trillion Cabochon Midnight Starry Night Black Opal Gemstone: 6.27 ct Trillion Cabochon Midnight Starry Night Black Opal Gemstone Introducing the ethereal Trillion Cabochon Midnight Starry Night Black Opal Gemstone - a true masterpiece that encapsulates the magi

Aug 19, 2026

6.27 ct Trillion Cabochon Midnight Starry Night Black Opal Gemstone

Est.

$250

-

$400

$180

Weatherham Estate TreasuresCobourg, ON

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