Results for “Opal Rocks”

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Natural Boulder Opal Multi-Color Gemstones 21.40 Ct. Flashing Free Form Cabochon: Product ID: 818727167 Product Name: Natural Opal Weight: 21.40 CT. Size: 31 x 16 x 3.7 MM. Shape: Free Form Cabochon Color: Multi-Color Clarity:Opaque Luster: Good Gems Origin: Queensland Australia Tr

Aug 30, 2026

Natural Boulder Opal Multi-Color Gemstones 21.40 Ct. Flashing Free Form Cabochon

Est.

US$227

-

US$357

US$1

Treasure of Gems & JewelryLake Charles, LA

10.13 Ct Natural Green Swiss Opal Fancy Cab: weight - 10.13 Ct / Dimensions - 29.00 x 9.10 x 4.10 mm / Shape & Cut - Excellent Fancy Cab / Origin - Brazil / Comments - None

Aug 21, 2026

10.13 Ct Natural Green Swiss Opal Fancy Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

11.47 Ct Natural Green Swiss Opal Fancy Cab: weight - 11.47 Ct / Dimensions - 23.20 x 13.00 x 5.50 mm / Shape & Cut - Excellent Fancy Cab / Origin - Brazil / Comments - None

Aug 21, 2026

11.47 Ct Natural Green Swiss Opal Fancy Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

2.04 Ct Natural Black Flashing Fire Opal Oval Cab: Weight - 2.04 Ct / Size - 11.50 x 7.90 x 5.00 mm / Shape - Oval Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Aug 19, 2026

2.04 Ct Natural Black Flashing Fire Opal Oval Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

Natural Multi Color Swan Carving Opal Boulder 21.67 Ct.: Product ID: 818727182 Product Name: Natural Opal Carving Weight: 21.67 CT. Size: 26 x 22 x 5 MM. Shape: Swan Carving Color: Multi-Color Clarity:Opaque Luster: Iridescent Gems Origin: Australia Treatme

Aug 30, 2026

Natural Multi Color Swan Carving Opal Boulder 21.67 Ct.

Est.

US$370

-

US$582

US$1

Treasure of Gems & JewelryLake Charles, LA

2.11ct Natural Ethiopian Welo Faceted Opal, 3EB: This expertly faceted finished opal holds soft shifting internal light phenomena visible across polished reflective planes within its 10.3x8.7x6.6mm calibrated measurements, precise faceting structure

10 hrs Left

2.11ct Natural Ethiopian Welo Faceted Opal, 3EB

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

18.18 Ct Natural Dendrite Opal Cushion Cab: weight - 18.18 Ct / Dimensions - 24.00 x 16.00 x 5.80 mm / Shape & Cut - Excellent Cushion Cab / Origin - Brazil / Comments - None

Aug 21, 2026

18.18 Ct Natural Dendrite Opal Cushion Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

2.09 Ct Natural Orange Fire Opal Trillion Cab: Weight - 2.09 Ct / Size - 8.90 x 8.50 x 4.10 mm / Shape - Trillion Cab / Color - Orange / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

Aug 19, 2026

2.09 Ct Natural Orange Fire Opal Trillion Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

10.84 Ct Natural Green Swiss Opal Pear Cab: weight - 10.84 Ct / Dimensions - 30.00 x 12.40 x 4.40 mm / Shape & Cut - Excellent Pear Cab / Origin - Brazil / Comments - None

Aug 21, 2026

10.84 Ct Natural Green Swiss Opal Pear Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

21.34 Ct Natural Green Opal Pear Cab: Weight - 21.34 Ct / Dimensions - 24.90 x 21.20 x 6.00 mm / Shape - Pear Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

Aug 21, 2026

21.34 Ct Natural Green Opal Pear Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

22.75 Ct Natural Green Opal Pear Cab: Weight - 22.75 Ct / Size - 30.00 x 19.30 x 5.90 mm / Shape - Pear Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

Aug 19, 2026

22.75 Ct Natural Green Opal Pear Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

27ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 3BM: This smoothly polished cabochon of natural phantom quartz preserves delicate layered phantom crystal formations enclosed inside transparent quartz host. The domed polished surface offers unobstructed

10 hrs Left

27ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 3BM

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

25ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 96BM: This smoothly polished cabochon of natural phantom quartz preserves delicate layered phantom crystal formations enclosed inside transparent quartz host. The domed polished surface offers unobstructed

10 hrs Left

25ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 96BM

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

17.03 Ct Natural Green Opal Pear Cab: Weight - 17.03 Ct / Dimensions - 25.80 x 15.00 x 6.70 mm / Shape - Pear Cab / Color - Green / Clarity - Opaque / Origin - Brazil / Treatment - None

Aug 21, 2026

17.03 Ct Natural Green Opal Pear Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

22.33 Ct Natural Blue Opal Oval Cab: weight - 22.33 Ct / Size - 28.00 x 16.90 x 6.60 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

Aug 19, 2026

22.33 Ct Natural Blue Opal Oval Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

168ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 97FB: This unpolished mineral rough is natural ruby zoisite sourced from Tanzania, exhibiting distinct banded mineral segregation of vibrant green zoisite, magenta ruby crystals, and dark hornblende inclusi

10 hrs Left

168ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 97FB

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

10.54 Carat ---- Natural Pakistan Green Peridot ---- Baguette Cut---GGL Certified: Green Peridot with a Baguette Cut is a significant and high-quality gemstone, sourced from Pakistan, which is known for producing peridots with exceptional size and color saturation.------------------

3 days Left

10.54 Carat ---- Natural Pakistan Green Peridot ---- Baguette Cut---GGL Certified

Est.

US$1,200

-

US$1,500

US$10

California GemstonesOceanside, CA

14.72 Ct Natural Blue Opal Oval Cab: weight - 14.72 Ct / Size - 29.00 x 13.80 x 5.70 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

Aug 21, 2026

14.72 Ct Natural Blue Opal Oval Cab

Est.

US$100

-

US$200

US$1

Gems AuctionBangkok, TH

1.57 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 1.57 Ct / Size - 12.20 x 7.20 x 4.60 mm / Shape - Pear Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

Aug 19, 2026

1.57 Ct Natural Black Flashing Fire Opal Pear Cab

Est.

US$75

-

US$150

US$1

Gems AuctionBangkok, TH

285ct Natural Type A Burmese Jadeite Jade Sliced Rough, 14YR: 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

1 day Left

285ct Natural Type A Burmese Jadeite Jade Sliced Rough, 14YR

Est.

US$25

-

US$200

US$25

Lazo HeritageSathorn, Bangkok

2.77 Ct Natural Pink Fire Opal Pear Cab: Weight - 2.77 Ct / Dimensions - 12.70 x 9.50 x 5.60 mm / Shape - Pear Cab / Color - Pink / Clarity - Translucent / Origin - Ethiopia / Treatment - Color Heated

Buy Now

2.77 Ct Natural Pink Fire Opal Pear Cab

US$40

Gems AuctionBangkok, TH

30.12 Ct Natural Green Opal Pear Cab Pair: weight - 30.12 Ct / Size - 23.80 x 18.90 x 4.60 mm / 2 Pc's / Shape - Excellent Pear Cab / Origin - Brazil / Treatment - None

Buy Now

30.12 Ct Natural Green Opal Pear Cab Pair

US$28

Gems AuctionBangkok, TH

5.40 Carats Natural Purple Amethyst Oval Faceted Pair Loose Gemstone, 26XX: Natural crystalline amethyst material processed with precision oval faceting for the matched gem pair, exhibiting rich saturated violet hue alongside subtle natural internal inclusions inherent to unt

1 day Left

5.40 Carats Natural Purple Amethyst Oval Faceted Pair Loose Gemstone, 26XX

Est.

US$10

-

US$200

US$10

Lazo HeritageSathorn, Bangkok

31ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 95BL: This smoothly polished cabochon of natural phantom quartz preserves delicate layered phantom crystal formations enclosed inside transparent quartz host. The domed polished surface offers unobstructed

10 hrs Left

31ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 95BL

Est.

US$10

-

US$200

US$10

ThousandPlanetSathorn, Bangkok

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