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    1. eBay
    2. Jewellery & Watches
    3. Loose Diamonds & Gemstones
    4. Loose Gemstones
    5. Opal
    6. Boulder Opals
    7. Natural Rough Loose Boulder Opals
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    Natural Rough Loose Boulder Opals

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    List view

    1-48 of 311 results

    •  Australian Boulder Opal Rough assorted random 1 piece Petrified Wood with Opal

      Australian Boulder Opal Rough assorted random 1 piece Petrified Wood with Opal

      AU $20.00
      AU $5.95 postage
      or Best Offer
      36 watching
    • Large Lavender Opal Face. Rough Boulder Opal.

      Large Lavender Opal Face. Rough Boulder Opal.

      AU $92.00
      1 bid
      AU $11.95 postage
      Ending Tuesday at 21:09 AEDST1d 16h
    • Gem Green Veins. High Brilliance. Rough Boulder Opal

      Gem Green Veins. High Brilliance. Rough Boulder Opal

      AU $273.00
      0 bids
      or Buy It Now
      Ending 1 Feb at 22:25 AEDST7d 18h
      Local pickup
    • Natural Opal Boulder Rough Raw Mineral Specimen Matrix Australian Blue

      Natural Opal Boulder Rough Raw Mineral Specimen Matrix Australian Blue

      AU $92.00
      AU $9.50 postage
      or Best Offer
      11 watching
    • Rare Gem Quality Rough Boulder Opal. Two Large Thick Colour Bars

      Rare Gem Quality Rough Boulder Opal. Two Large Thick Colour Bars

      AU $2,288.00
      AU $13.95 postage
      or Best Offer
      35 watching
    • Bright Green Opal Nugget. Rough Boulder Opal

      Bright Green Opal Nugget. Rough Boulder Opal

      AU $278.00
      0 bids
      or Buy It Now
      Ending Tuesday at 14:02 AEDST1d 9h
      Local pickup
    • Sparkling Gem Nuggets. Rough Boulder Opal. 263 Grams

      Sparkling Gem Nuggets. Rough Boulder Opal. 263 Grams

      AU $139.00
      0 bids
      or Buy It Now
      Ending Today at 17:59 AEDST13h 40m
      Local pickup
    • OPAL Queensland Boulder/Matrix Rough Opals 1550 cts

      OPAL Queensland Boulder/Matrix Rough Opals 1550 cts

      AU $78.00
      2 bids
      AU $8.00 postage
      Ending Today at 20:20 AEDST16h 2m
    • OPAL Queensland Boulder/Matrix Rough Opals 1495 cts

      OPAL Queensland Boulder/Matrix Rough Opals 1495 cts

      AU $55.00
      0 bids
      AU $8.00 postage
      Ending Today at 20:25 AEDST16h 7m
    • NATURAL AMAZING SUPER STUNNING YOWAH NUTS BOULDER MATRIX OPAL AUSTRALIA 3.6CT

      NATURAL AMAZING SUPER STUNNING YOWAH NUTS BOULDER MATRIX OPAL AUSTRALIA 3.6CT

      AU $70.00
      AU $9.55 postage
      or Best Offer
    • Thick Purple Crystal. Rough Boulder Opal

      Thick Purple Crystal. Rough Boulder Opal

      AU $119.00
      0 bids
      AU $13.95 postage
      Ending Today at 17:35 AEDST13h 17m
      or Buy It Now
    • OPAL Queensland Boulder/Matrix Rough Opals 850 cts

      OPAL Queensland Boulder/Matrix Rough Opals 850 cts

      AU $65.00
      0 bids
      AU $8.00 postage
      Ending Today at 20:10 AEDST15h 51m
    • 28.6Ct Boulder Opal From Yowah with Vibrant Purple (YB54)

      28.6Ct Boulder Opal From Yowah with Vibrant Purple (YB54)

      AU $70.00
      AU $8.95 postage
      or Best Offer
    • Koroit Boulder Parcel plenty of Opal Colour 14.15 TCW

      Koroit Boulder Parcel plenty of Opal Colour 14.15 TCW

      AU $50.00
      AU $8.95 postage
      or Best Offer
      12 watching
    • Boulder Opal Rough Matrix Solid. Natural Yowah Lapidary Specimen

      Boulder Opal Rough Matrix Solid. Natural Yowah Lapidary Specimen

      AU $55.00
      AU $12.50 postage
      or Best Offer
    • HUGE COOBER PEDY SEAM OPAL  SPECIMEN LOTS OF RED

      HUGE COOBER PEDY SEAM OPAL SPECIMEN LOTS OF RED

      AU $340.00
      0 bids
      AU $10.50 postage
      Ending 31 Jan at 22:27 AEDST6d 18h
    • 7.2 Kilo  Queensland Australia BOULDER OPAL Crystal Rough Mineral (#L6762)

      7.2 Kilo Queensland Australia BOULDER OPAL Crystal Rough Mineral (#L6762)

      AU $375.00
      AU $25.00 postage
      11 watching
    • 2.1 Kilos  Queensland Australia BOULDER OPAL Crystal Rough Mineral (#L8698)

      2.1 Kilos Queensland Australia BOULDER OPAL Crystal Rough Mineral (#L8698)

      AU $19.95
      AU $9.95 postage
    • Large Flat Purple Face. Rough Boulder Opal

      Large Flat Purple Face. Rough Boulder Opal

      AU $119.00
      0 bids
      or Buy It Now
      Ending 4 Feb at 0:26 AEDST9d 20h
    • OPAL Queensland Boulder/Matrix Rough Opals 1230 cts

      OPAL Queensland Boulder/Matrix Rough Opals 1230 cts

      AU $65.00
      0 bids
      AU $8.00 postage
      Ending Today at 20:30 AEDST16h 12m
    •  QLD BOULDER PIPE CRYSTAL  OPAL GEM QUALITY ROUGH RUB

      QLD BOULDER PIPE CRYSTAL OPAL GEM QUALITY ROUGH RUB

      AU $35.00
      0 bids
      AU $10.50 postage
      Ending Thursday at 22:28 AEDST3d 18h
    • BIG & Beautiful 563.95CT +VIDEO Australia Queensland Boulder Opal ROUGH / RUB

      BIG & Beautiful 563.95CT +VIDEO Australia Queensland Boulder Opal ROUGH / RUB

      AU $131.70
      AU $7.95 postage
    • Queensland Boulder Matrix Opal 470ct Australian Natural Rough Specimen

      Queensland Boulder Matrix Opal 470ct Australian Natural Rough Specimen

      AU $225.00
      Free postage
      or Best Offer
    • 7.35 Ct Boulder Opal from the Koroit Fields in Queensland Australia

      7.35 Ct Boulder Opal from the Koroit Fields in Queensland Australia

      AU $110.00
      AU $8.95 postage
      or Best Offer
    • Queensland Boulder Koroit / Yowah Opal 160ct Australian Rough Specimen Pair

      Queensland Boulder Koroit / Yowah Opal 160ct Australian Rough Specimen Pair

      AU $125.00
      Free postage
      or Best Offer
    • qld boulder opal rough colorful parcel 12 pieces A12

      qld boulder opal rough colorful parcel 12 pieces A12

      AU $45.00
      0 bids
      AU $14.75 postage
      Ending 31 Jan at 13:20 AEDST6d 9h
      or Best Offer
    • BIG 34.95CT +VIDEO Australia Queensland Boulder Opal SIDE DRILLED

      BIG 34.95CT +VIDEO Australia Queensland Boulder Opal SIDE DRILLED

      AU $107.50
      AU $5.50 postage
      or Best Offer
    • Natural Australian Boulder Rough Opal Display Specimen from Queensland 200gms ✨

      Natural Australian Boulder Rough Opal Display Specimen from Queensland 200gms ✨

      AU $85.00
      AU $9.50 postage
      or Best Offer
    • AUSTRALIAN BOULDER OPAL ROUGH SPECIMEN ORNAMENT Xmas Gift For Collector

      AUSTRALIAN BOULDER OPAL ROUGH SPECIMEN ORNAMENT Xmas Gift For Collector

      AU $10.00
      1 bid
      Ending Friday at 8:00 AEDST4d 3h
    • Queensland Boulder Koroit / Yowah Opal 50ct Australian Natural Rough Specimen

      Queensland Boulder Koroit / Yowah Opal 50ct Australian Natural Rough Specimen

      AU $50.00
      Free postage
      35 watching
    • STUNNING 163.85CT +VIDEO Aust QLD Boulder Opal SLAB ROUGH / RUB UNPOLISHED

      STUNNING 163.85CT +VIDEO Aust QLD Boulder Opal SLAB ROUGH / RUB UNPOLISHED

      AU $117.20
      Free postage
      10 watching
    • OPAL  Queensland Boulder Rough Opal 1170 cts

      OPAL Queensland Boulder Rough Opal 1170 cts

      AU $65.00
      0 bids
      AU $8.00 postage
      Ending Today at 20:05 AEDST15h 46m
    • 41.3 Ct Yowah Nut

      41.3 Ct Yowah Nut

      AU $98.00
      AU $8.95 postage
      or Best Offer
    • Brilliant Stripe of Precious Green Opal. Rough Boulder Opal.

      Brilliant Stripe of Precious Green Opal. Rough Boulder Opal.

      AU $147.00
      0 bids
      AU $13.95 postage
      Ending 2 Feb at 16:14 AEDST8d 11h
      or Buy It Now
    • OPAL HEART Queensland Boulder/Matrix 200 cts

      OPAL HEART Queensland Boulder/Matrix 200 cts

      AU $70.00
      0 bids
      AU $8.00 postage
      Ending Today at 20:45 AEDST16h 27m
    • OPAL Queensland Boulder/Matrix Rough Opal 2350 cts

      OPAL Queensland Boulder/Matrix Rough Opal 2350 cts

      AU $65.00
      0 bids
      AU $8.00 postage
      Ending Today at 20:35 AEDST16h 16m
    • qld boulder rough opal parcel #003

      qld boulder rough opal parcel #003

      AU $29.00
      0 bids
      AU $17.95 postage
      Ending Saturday at 17:35 AEDST5d 13h
      or Best Offer
    • qld bould opal parcel bottle A9

      qld bould opal parcel bottle A9

      AU $150.00
      0 bids
      AU $17.50 postage
      Ending Saturday at 15:07 AEDST5d 10h
      or Best Offer
    • QLD Boulder Opal Rough 300 CT Rubs Purple Blue Green Red Flashes In Matrix

      QLD Boulder Opal Rough 300 CT Rubs Purple Blue Green Red Flashes In Matrix

      AU $108.00
      0 bids
      or Best Offer
      Ending Today at 18:40 AEDST14h 21m
    • AUSTRALIAN BOULDER OPAL ROUGH SPECIMEN ORNAMENT The Jewel in a Glass Jar.

      AUSTRALIAN BOULDER OPAL ROUGH SPECIMEN ORNAMENT The Jewel in a Glass Jar.

      AU $45.00
      0 bids
      Ending Saturday at 21:14 AEDST5d 16h
    • Boulder Opal Rough Parcel Blue Matrix Quiplie Solid Lapidary Natural Specimen

      Boulder Opal Rough Parcel Blue Matrix Quiplie Solid Lapidary Natural Specimen

      AU $20.00
      1 bid
      AU $13.50 postage
      Ending Tuesday at 19:30 AEDST1d 15h
    • 15.1Ct Yowah Boulder Opal Australia Has vibrant colour coming through the dark

      15.1Ct Yowah Boulder Opal Australia Has vibrant colour coming through the dark

      AU $55.00
      AU $8.95 postage
      or Best Offer
    • NATURAL AUSTRALIAN BOULDER OPAL 920g ROUGH SPECIMEN AQUARIUM TERRARIUM OCA12533

      NATURAL AUSTRALIAN BOULDER OPAL 920g ROUGH SPECIMEN AQUARIUM TERRARIUM OCA12533

      AU $109.00
      Free postage
    • qld boulder opal over 1/2 kilo rough parcel A11

      qld boulder opal over 1/2 kilo rough parcel A11

      AU $95.00
      0 bids
      AU $17.95 postage
      Ending Saturday at 17:25 AEDST5d 13h
      or Best Offer
    • CLEARANCE AUSTRALIAN 19 kg BOULDER OPAL ROUGH CARVING SPECIMEN DRUM OCA11529

      CLEARANCE AUSTRALIAN 19 kg BOULDER OPAL ROUGH CARVING SPECIMEN DRUM OCA11529

      AU $650.00
      Free postage
      or Best Offer
      11 watching
    • Natural Australian Boulder Rough Opal Display Specimen from Queensland 146gms ✨

      Natural Australian Boulder Rough Opal Display Specimen from Queensland 146gms ✨

      AU $45.00
      AU $9.50 postage
      or Best Offer
    • 1.1 Kilo  Queensland Australia BOULDER OPAL Crystal Rough Mineral (#L8688)

      1.1 Kilo Queensland Australia BOULDER OPAL Crystal Rough Mineral (#L8688)

      AU $18.95
      AU $9.95 postage
    • Boulder Opal Rough Parcel Quiplie Blue Matrix Solid Lapidary Natural Specimen

      Boulder Opal Rough Parcel Quiplie Blue Matrix Solid Lapidary Natural Specimen

      AU $20.00
      1 bid
      AU $13.50 postage
      Ending Tuesday at 19:35 AEDST1d 15h

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