Results for “Opal Rocks”

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Natural Opal Multi Color Gemstones 1.30 Ct. Round Shape 7.9 x 4.9 Mm.: Product ID: 818711835 Product Name: Natural Opal Weight: 1.30 CT. Size: 7.9 x 4.9 MM. Shape: Round Color: Multi Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatment: Unheated

Jul 19, 2026

Natural Opal Multi Color Gemstones 1.30 Ct. Round Shape 7.9 x 4.9 Mm.

Est.

US$146

-

US$230

US$1

Treasure of Gems & JewelryLake Charles, LA

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

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

US$36

Treasure of Gems & JewelryLake Charles, LA

2.16 Ct Natural Multicolor Welo Opal Round Cab Pair: Weight - 2.16 Ct / Dimensions - 7.00 x 7.00 x 4.00 mm / 2 Pc's / Shape & Cut - Round Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

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2.16 Ct Natural Multicolor Welo Opal Round Cab Pair

US$38

Gems AuctionBangkok, TH

Richardoestesia Tooth, Fern Fossil, and Opal Group: Eastern Africa (Ethiopia), Australia, and North America (Montana), ca. millions of years ago. This assorted group includes a fossilized leaf or fern frond preserved in matrix and a shard of a Richardo

3 days Left

Richardoestesia Tooth, Fern Fossil, and Opal Group

Est.

US$600

-

US$900

US$200

Artemis Fine ArtsLouisville, CO

Natural Multi Color Opal Gemstones 11.66 Ct. Dog Carving 21 x 14 Mm.: Product ID: 818727145 Product Name: Natural Opal Carving Weight: 11.66 CT. Size: 21 x 14 x 7 MM. Shape: Dog Carving Color: Multi Color Clarity:Semi - Transparent Luster: Strong Iridescent Gems Origin:

2 days Left

Natural Multi Color Opal Gemstones 11.66 Ct. Dog Carving 21 x 14 Mm.

Est.

US$129

-

US$203

US$1

Treasure of Gems & JewelryLake Charles, LA

10.35 Ct Natural Multicolor Top Fire Opal Solid Rough Cab Set: Weight - 10.35 Ct / Dimensions - 17.0x7.0 - 17.5x9.0 mm / 3 Pc's / Shape - Unshaped Solid Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

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10.35 Ct Natural Multicolor Top Fire Opal Solid Rough Cab Set

US$70

Gems AuctionBangkok, TH

1.09 Ct Natural Multicolor Welo Opal Round Cab Pair: Weight - 1.09 Ct / Dimensions - 5.90 x 5.90 x 3.30 mm / Shape & Cut - Round Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

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1.09 Ct Natural Multicolor Welo Opal Round Cab Pair

US$29

Gems AuctionBangkok, TH

3.75 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 3.75 Ct / Size - 12.60 x 9.90 x 6.20 mm / Shape - Pear Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

6 days Left

3.75 Ct Natural Black Flashing Fire Opal Pear Cab

Est.

US$100

-

US$200

US$4

Gems AuctionBangkok, TH

1.44 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 1.44 Ct / Dimensions - 10.90 x 7.80 x 4.00 mm / Shape - pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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1.44 Ct Natural Black Flashing Fire Opal Pear Cab

US$30

Gems AuctionBangkok, TH

Natural Muti Color Opal Gemstones 1.73 Ct. Round Shape 8.8 Mm.: Product ID: 818715459 Product Name: Natural Opal Weight: 1.73 CT. Size: 8.8 x 8.8 x 5.5 MM. Shape: Round Color: Muti Color Clarity:Semi - Transparent Luster: Good Gems Origin: Ethiopia Treatment: Unhe

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Natural Muti Color Opal Gemstones 1.73 Ct. Round Shape 8.8 Mm.

US$37

Treasure of Gems & JewelryLake Charles, LA

1.53 Ct Natural Multicolor Welo Opal Round Cab: Weight - 1.53 Ct / Dimensions - 7.20 x 7.20 x 5.60 mm / Shape & Cut - Round Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

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1.53 Ct Natural Multicolor Welo Opal Round Cab

US$32

Gems AuctionBangkok, TH

0.76 Ct Natural Multicolor Welo Opal Round Cab: Weight - 0.76 Ct / Dimensions - 7.10 x 7.10 x 3.80 mm / Shape & Cut - Round Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

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0.76 Ct Natural Multicolor Welo Opal Round Cab

US$26

Gems AuctionBangkok, TH

Natural Multi Color Play Of Colour Opal Gemstones 1.00 Ct. Octagon Shape 9 x 7 Mm.: Product ID: 818726147 Product Name: Natural Opal Weight: 1.00 CT. Size: 9 x 7 x 3.6 MM. Shape: Octagon Color: Multi-Color Clarity:Semi - Transparent Luster: Iridescent Gems Origin: Ethiopia Treatment:

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Natural Multi Color Play Of Colour Opal Gemstones 1.00 Ct. Octagon Shape 9 x 7 Mm.

US$39

Treasure of Gems & JewelryLake Charles, LA

3.92 Ct Natural Multicolor Welo Opal Flash Fire Round Cab Set: Weight - 3.92 Ct / Dimensions - 3.00 - 4.20 mm / 24 Pc's / Shape & Cut - Round Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

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3.92 Ct Natural Multicolor Welo Opal Flash Fire Round Cab Set

US$49

Gems AuctionBangkok, TH

AAA+ Quality Doublet 50.70 Ct Certified Natural Ammolite Opal-Like Organic Loose Gemstone, Gem232: AAA+ Quality Doublet 50.70 Ct Certified Natural Ammolite Opal-Like Organic Loose Gemstone, Gem232

Jul 20, 2026

AAA+ Quality Doublet 50.70 Ct Certified Natural Ammolite Opal-Like Organic Loose Gemstone, Gem232

Est.

US$1,200

-

US$1,800

US$50

ABC Rugs Kilims, Inc.Oxnard, CA

1.61 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 1.61 Ct / Dimensions - 10.20 x 7.10 x 5.00 mm / Shape - Pear Cab / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Smoked

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1.61 Ct Natural Black Flashing Fire Opal Pear Cab

US$34

Gems AuctionBangkok, TH

AAA+ Quality Natural Fire Opal 78.80 Ct Cushion Certified Unheated Welo Australian Gemstone, Gem182: AAA+ Quality Natural Fire Opal 78.80 Ct Cushion Certified Unheated Welo Australian Gemstone, Gem182

Jul 20, 2026

AAA+ Quality Natural Fire Opal 78.80 Ct Cushion Certified Unheated Welo Australian Gemstone, Gem182

Est.

US$2,304

-

US$3,456

US$100

ABC Rugs Kilims, Inc.Oxnard, CA

AAA+ Certified Natural Ethiopian 1 Piece Oval Shaped Gray Opal Gemstone, Weight: 3.35, Size: 10x14,: AAA+ Certified Natural Ethiopian 1 Piece Oval Shaped Gray Opal Gemstone, Weight: 3.35, Size: 10x14, Gem131

Jul 20, 2026

AAA+ Certified Natural Ethiopian 1 Piece Oval Shaped Gray Opal Gemstone, Weight: 3.35, Size: 10x14,

Est.

US$1,200

-

US$1,800

US$50

ABC Rugs Kilims, Inc.Oxnard, CA

2.00 Ct Natural Multicolor Welo Opal Flash Fire Round Cab Pair: Weight - 2.00 Ct / Dimensions - 7.10 x 7.10 x 3.90 mm / 2 Pc's / Shape & Cut - Round Cab / Color - Multicolor / Transparency - Translucent / Origin - Ethiopia / Comments - None

3 days Left

2.00 Ct Natural Multicolor Welo Opal Flash Fire Round Cab Pair

Est.

US$75

-

US$150

US$3

Gems AuctionBangkok, TH

53.96 Ct Natural Dendrite Opal Pear Cab: weight - 53.96 Ct / Dimensions - 38.00 x 34.00 x 6.40 mm / Shape & Cut - Excellent Pear Cab / Origin - Brazil / Comments - None

6 days Left

53.96 Ct Natural Dendrite Opal Pear Cab

Est.

US$100

-

US$200

US$47

Gems AuctionBangkok, TH

AAA+ Quality 3.95 Ct Natural Ethiopian Fire Opal Certified Play of Color Untreated Gemstone, Gem234: AAA+ Quality 3.95 Ct Natural Ethiopian Fire Opal Certified Play of Color Untreated Gemstone, Gem234

Jul 20, 2026

AAA+ Quality 3.95 Ct Natural Ethiopian Fire Opal Certified Play of Color Untreated Gemstone, Gem234

Est.

US$1,400

-

US$2,100

US$100

ABC Rugs Kilims, Inc.Oxnard, CA

Natural Multi Color Flashing Boulder Opal Gemstones 3.49 Ct. Free Form Cabochon Shape: Product ID: 818723387 Product Name: Natural Opal Weight: 3.49 CT. Size: 11 x 8.7 x 4.5 MM. Shape: Free Form Cabochon Color: Multi-Color Clarity:Opaque Luster: Iridescent Gems Origin: Queensland Austra

2 days Left

Natural Multi Color Flashing Boulder Opal Gemstones 3.49 Ct. Free Form Cabochon Shape

Est.

US$64

-

US$102

US$10

Treasure of Gems & JewelryLake Charles, LA

0.94 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 0.94 Ct / Size - 9.40 x 6.40 x 3.50 mm / Shape - Pear Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Jul 21, 2026

0.94 Ct Natural Black Flashing Fire Opal Pear Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

Polished Green Opal Freeform: Polished green opal freeform from Madagascar. 5” x 3.25" x 2.25". 1 lb, 10 oz.

Jul 25, 2026

Polished Green Opal Freeform

Est.

US$150

-

US$200

US$40

Fossils & Gemstones of HoustonHouston, TX

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