Results for “Opal Rocks”

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Feb 20, 2026

ESTATE UNMOUNTED NAVETTE-FORM OPAL GEMSTONE, 13.65CTS

Austin Auction Gallery

Est. $400-$600

$250

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9.41 Ct Natural Black Flashing Fire Opal Round Cab

Gems Auction

$196(4 bids)

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IGI Certified 27.07 ct. Carved Kangaroo Opal AUSTRALIA

Kissing Auction

$1,000

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Natural Rose Quartz 54.61 Ct. Clean Heart Checkerboard Cut 27 x 22 Mm. Gemstone From Brazil

Treasure of Gems & Jewelry

$113(5 bids)

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25.90 ct. Natural Play of Color Opal - ETHIOPIA

Kissing Auction

$1,300

Ends in 2d 10h

Vintage HAR Leaf Clamper Bracelet,White/Gold Enamel Washed with Lava Rocks, 6.5"

Chairish Auctions

Est. $500-$600

$400

Feb 25, 2026

0.89ct Bluish White Oval Opal Cabochon Gemstones

Weatherham Estate Treasures

Est. $500-$600

$350

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Dinosaur Tooth, Plant Fossil & 6 Opal Specimens

Artemis Fine Arts

$585

Mar 01, 2026

8.92ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL

Modern Jewelry

Est. $550-$687

$290

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Natural Multi - Color Boulder Flashing 21.40 Ct. Free Form Cabochon Shape 31 x 16 Mm. Gemstone From

Treasure of Gems & Jewelry

$78(1 bid)

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2.33 ct. Play of Color Natural White Opal - ETHIOPIA

Kissing Auction

$500

Feb 25, 2026

Loose Purple Opal-Colored Stones Lot – 38.7ct

Gallery 63

Est. $10-$100,000

$10(1 bid)

Feb 18, 2026

6.27 ct Trillion Cabochon Midnight Starry Night Black Opal Gemstone

Weatherham Estate Treasures

Est. $250-$400

$180

Feb 19, 2026

Fine All Natural Australian Opal Mineral Specimen

Inspired Auctions

Est. $200-$300

$80

Mar 05, 2026

LOOSE NATURAL UNTREATED ROUND CUT CABOCHON OPAL Sale is for 1 round cut cabochon opal Opal measures

Modern Jewelry

Est. $104-$128

$84

Mar 01, 2026

19.85ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL

Modern Jewelry

Est. $343-$481

$150

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Natural Multi Color Opal Flashing Boulder 19.77 Ct. Free Form Cabochon Gemstone From Australia

Treasure of Gems & Jewelry

$78(1 bid)

3 days Left

3.74ct LOOSE OVAL CABOCHON NATURAL WHITE OPAL 13x11mm

Modern Jewelry

Est. $113-$139

$90

Mar 19, 2026

3.74ct LOOSE OVAL CABOCHON NATURAL WHITE OPAL 13x11mm

Modern Jewelry

Est. $113-$139

$90

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Natural Yellow Opal 6.36 Ct. Marquise Shape 24 x 10.7 Mm. Unheated Gemstone From Ethiopia

Treasure of Gems & Jewelry

$123(2 bids)

Mar 01, 2026

16.41ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL

Modern Jewelry

Est. $275-$481

$130

Feb 18, 2026

13.47ct Soul Prism Natural Multicolour Boulder Opal

Weatherham Estate Treasures

Est. $350-$500

$185

Mar 02, 2026

Earthsplit Flame Boulder Opal Cushion Cabochon

Weatherham Estate Treasures

Est. $300-$400

$190

Feb 25, 2026

Loose Pink Opal Colored Stones Lot – 128.4ct

Gallery 63

Est. $10-$100,000

$10

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