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Australia Boulder Opal Opaque Loose Gemstones

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4,146 results

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    • Gemstone Type: Boulder Opal- Selected
    • Country of Origin: Australia- Selected
    • Transparency: Opaque- Selected
    Clear All

    • Opalton, QLD Boulder opal Gem Cabochon. Polished Stone Australian Opal - Image 1 of 3
    • Opalton, QLD Boulder opal Gem Cabochon. Polished Stone Australian Opal - Image 2 of 3
    • Opalton, QLD Boulder opal Gem Cabochon. Polished Stone Australian Opal - Image 3 of 3

    Opalton, QLD Boulder opal Gem Cabochon. Polished Stone Australian Opal

    £78.68
    or Best Offer
    £3.00 P&P
    Click & Collect
    ⁣⁣3⁣U⁣ ⁣Q⁣T⁣ ⁣C⁣N⁣ ⁣⁣⁣⁣J⁣⁣⁣F⁣ ⁣T⁣⁣⁣⁣⁣⁣⁣⁣R⁣
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal. Rare** - Image 1 of 4
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal. Rare** - Image 2 of 4
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal. Rare** - Image 3 of 4
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal. Rare** - Image 4 of 4

    Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal. Rare**

    £103.64
    or Best Offer
    £3.00 P&P
    Click & Collect
    D⁣C⁣ ⁣S⁣Y⁣p⁣T⁣o⁣ ⁣A⁣n⁣5⁣ ⁣W⁣7⁣s⁣о⁣r⁣e⁣ ⁣U⁣G⁣ ⁣9⁣d⁣⁣⁣⁣
    • Yowah Boulder Opal Cabochon Polished Stone. Australian Opal Gemstone - Image 1 of 4
    • Yowah Boulder Opal Cabochon Polished Stone. Australian Opal Gemstone - Image 2 of 4
    • Yowah Boulder Opal Cabochon Polished Stone. Australian Opal Gemstone - Image 3 of 4
    • Yowah Boulder Opal Cabochon Polished Stone. Australian Opal Gemstone - Image 4 of 4

    Yowah Boulder Opal Cabochon Polished Stone. Australian Opal Gemstone

    £104.67
    or Best Offer
    £3.50 P&P
    Click & Collect
    10 watching
    S⁣B⁣p⁣o⁣n⁣s⁣o⁣S⁣ ⁣r⁣G⁣C⁣е⁣ ⁣7⁣B⁣d⁣⁣⁣ ⁣⁣⁣⁣⁣Y⁣⁣⁣8⁣
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal - Image 1 of 4
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal - Image 2 of 4
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal - Image 3 of 4
    • Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal - Image 4 of 4

    Opalton Boulder Opal Gemstone Cabochon. Polished Australian Opal

    £94.27
    or Best Offer
    £3.00 P&P
    Click & Collect
    S⁣U⁣p⁣C⁣ ⁣o⁣n⁣L⁣K⁣ѕ⁣ ⁣o⁣T⁣r⁣e⁣d⁣O⁣ ⁣E⁣⁣S⁣⁣⁣⁣ ⁣X⁣W⁣⁣
  • Boulder Opal Parcel 5 stones 17g, Queensland, Australia - Image 1 of 4

    Boulder Opal Parcel 5 stones 17g, Queensland, Australia

    £1.13
    or Buy It Now
    £2.94 P&P
    0 bids
    6d 5h
    S⁣⁣X⁣ ⁣M⁣⁣⁣V⁣⁣⁣ ⁣E⁣⁣⁣⁣V⁣⁣ ⁣⁣M⁣⁣⁣J⁣⁣⁣ ⁣B⁣⁣
  • Koroit Boulder Opal Parcel 42g Queensland, Australia - Image 1 of 4

    Koroit Boulder Opal Parcel 42g Queensland, Australia

    £1.13
    or Buy It Now
    £2.94 P&P
    0 bids
    6d 4h
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  • Boulder Opal Parcel 4 stones 15g, Queensland, Australia - Image 1 of 4

    Boulder Opal Parcel 4 stones 15g, Queensland, Australia

    £1.13
    or Buy It Now
    £2.94 P&P
    0 bids
    6d 5h
    ⁣0⁣W⁣⁣ ⁣L⁣⁣P⁣⁣ ⁣⁣⁣W⁣⁣⁣N⁣⁣ ⁣⁣3⁣⁣⁣⁣G⁣ ⁣⁣⁣E⁣
  • 3.55ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO - Image 1 of 4

    3.55ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO

    £0.73
    £17.78 P&P
    0 bids
    3d 14h
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  • 3.7ct MULTICOLOURED Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO - Image 1 of 4

    3.7ct MULTICOLOURED Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO

    £7.24
    £17.78 P&P
    6 bids
    3d 13h
    ⁣⁣⁣N⁣⁣E⁣ ⁣R⁣⁣9⁣⁣⁣ ⁣8⁣⁣E⁣ ⁣V⁣⁣⁣B⁣ ⁣⁣⁣⁣Q⁣⁣⁣
  • Boulder opal 2.53ct 23 x 4.8mm Australian opal natural solid loose unset stone - Image 1 of 4

    Boulder opal 2.53ct 23 x 4.8mm Australian opal natural solid loose unset stone

    £63.85
    £13.93 P&P
    ⁣⁣⁣F⁣⁣⁣⁣⁣S⁣ ⁣X⁣⁣X⁣ ⁣U⁣⁣⁣0⁣⁣ ⁣7⁣L⁣⁣ ⁣9⁣⁣⁣⁣
  • 43.5 TCW BRIGHT FIRE Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    43.5 TCW BRIGHT FIRE Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £207.41
    £14.81 P&P
    30 watching
    J⁣⁣K⁣⁣⁣ ⁣K⁣⁣⁣U⁣⁣ ⁣J⁣N⁣⁣⁣⁣ ⁣H⁣⁣G⁣ ⁣T⁣F⁣ ⁣9⁣⁣⁣
  • 46.4 CT Natural AUSTRALIA KOROIT Boulder Opal Stone + VIDEO - Image 1 of 4

    46.4 CT Natural AUSTRALIA KOROIT Boulder Opal Stone + VIDEO

    £503.70
    £14.81 P&P
    P⁣⁣⁣⁣⁣⁣B⁣⁣⁣⁣⁣ ⁣W⁣1⁣ ⁣H⁣N⁣ ⁣⁣⁣2⁣J⁣ ⁣⁣⁣⁣K⁣⁣
  • Boulder opal 4.05ct 13.8 x 11mm Australian opal natural solid unset stone Winton - Image 1 of 4

    Boulder opal 4.05ct 13.8 x 11mm Australian opal natural solid unset stone Winton

    £43.53
    £13.93 P&P
    9⁣⁣N⁣⁣⁣ ⁣⁣⁣7⁣⁣X⁣⁣⁣⁣⁣⁣ ⁣B⁣A⁣ ⁣⁣⁣⁣L⁣⁣5⁣⁣ ⁣
  • boulder opal gem, koroit, queensland, Australia - Image 1 of 4

    boulder opal gem, koroit, queensland, Australia

    £853.28
    or Best Offer
    Free postage
    Click & Collect
    S⁣Q⁣p⁣o⁣n⁣ѕ⁣o⁣r⁣e⁣d⁣X⁣⁣ ⁣0⁣⁣⁣C⁣⁣ ⁣⁣⁣L⁣H⁣⁣ ⁣⁣M⁣2⁣
  • 1.95cts Queensland Boulder Opal Stone. High lustre, Top professional Polished. - Image 1 of 1

    1.95cts Queensland Boulder Opal Stone. High lustre, Top professional Polished.

    £42.28
    Free postage
    Click & Collect
    S⁣C⁣p⁣V⁣ ⁣о⁣I⁣V⁣ ⁣n⁣X⁣L⁣s⁣ ⁣7⁣W⁣ ⁣o⁣9⁣8⁣r⁣ ⁣6⁣⁣e⁣d⁣ ⁣⁣
  • 4325CT Open Yowah Nut BOULDER OPAL Australia Natural Electric Vivid Wood Pattern - Image 1 of 4

    4325CT Open Yowah Nut BOULDER OPAL Australia Natural Electric Vivid Wood Pattern

    £145.08
    or Best Offer
    £17.38 P&P
    S⁣5⁣8⁣p⁣ ⁣o⁣n⁣s⁣о⁣r⁣P⁣A⁣ ⁣e⁣7⁣d⁣O⁣⁣⁣ ⁣⁣⁣⁣Y⁣⁣0⁣ ⁣⁣
  • 1.4ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    1.4ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £17.77
    £17.78 P&P
    ⁣Z⁣Z⁣⁣⁣⁣ ⁣3⁣6⁣⁣⁣ ⁣⁣K⁣⁣⁣⁣F⁣ ⁣R⁣⁣⁣⁣⁣⁣⁣Q⁣⁣
  • 1ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    1ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £0.73
    £17.78 P&P
    0 bids
    3d 13h
    E⁣⁣⁣E⁣ ⁣4⁣4⁣ ⁣G⁣⁣⁣W⁣⁣⁣⁣ ⁣⁣9⁣4⁣⁣ ⁣B⁣0⁣ ⁣⁣⁣⁣U⁣
  • 73g Koroit Boulder Queensland Opal Australian Rough Nut piece Red green Bo-117 - Image 1 of 4

    73g Koroit Boulder Queensland Opal Australian Rough Nut piece Red green Bo-117

    £399.00
    Free postage
    Click & Collect
    ⁣⁣F⁣⁣H⁣ ⁣G⁣⁣⁣Y⁣⁣ ⁣G⁣H⁣ ⁣⁣O⁣⁣4⁣ ⁣F⁣I⁣⁣ ⁣C⁣⁣⁣⁣
  • Boulder opal 9.94ct 21.8 x 14mm Australian opal natural solid unset stone Winton - Image 1 of 4

    Boulder opal 9.94ct 21.8 x 14mm Australian opal natural solid unset stone Winton

    £140.27
    £11.61 P&P
    11 watching
    ⁣C⁣2⁣ ⁣S⁣Q⁣ ⁣⁣⁣⁣⁣B⁣⁣3⁣ ⁣Y⁣O⁣⁣ ⁣⁣⁣B⁣P⁣⁣⁣⁣⁣⁣
  • 0.85ct VERY BRIGHT Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    0.85ct VERY BRIGHT Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £0.96
    £17.78 P&P
    3 bids
    2d 13h
    8⁣H⁣ ⁣⁣W⁣⁣⁣⁣J⁣⁣ ⁣⁣⁣V⁣⁣O⁣ ⁣H⁣⁣⁣W⁣ ⁣⁣⁣⁣9⁣V⁣ ⁣
  • 12.7ct BEAUTIFUL Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    12.7ct BEAUTIFUL Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £0.77
    £17.78 P&P
    2 bids
    3d 14h
    B⁣⁣⁣⁣⁣E⁣⁣⁣ ⁣⁣A⁣⁣⁣J⁣ ⁣X⁣⁣S⁣⁣ ⁣Y⁣Z⁣ ⁣7⁣P⁣ ⁣⁣⁣
  • Boulder opal 4.58ct 12 x 11mm Australian opal natural solid unset stone Winton - Image 1 of 4

    Boulder opal 4.58ct 12 x 11mm Australian opal natural solid unset stone Winton

    £40.05
    £13.93 P&P
    ⁣⁣E⁣O⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣M⁣Q⁣ ⁣C⁣E⁣⁣⁣ ⁣3⁣D⁣⁣ ⁣⁣
  • 1.55ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO - Image 1 of 4

    1.55ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO

    £11.10
    £17.78 P&P
    0 bids
    3d 13h
    ⁣B⁣0⁣ ⁣R⁣⁣⁣J⁣ ⁣P⁣⁣5⁣ ⁣⁣C⁣⁣⁣Q⁣ ⁣⁣V⁣⁣⁣⁣⁣T⁣⁣⁣
  • 0.65ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO - Image 1 of 4

    0.65ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO

    £0.78
    £17.78 P&P
    2 bids
    3d 13h
    ⁣⁣F⁣B⁣⁣ ⁣N⁣M⁣⁣ ⁣I⁣M⁣ ⁣⁣A⁣Z⁣ ⁣⁣⁣⁣⁣A⁣R⁣ ⁣⁣A⁣⁣⁣
  • 1.05CT Natural AUSTRALIA KOROIT Boulder Opal Stone + VIDEO - Image 1 of 4

    1.05CT Natural AUSTRALIA KOROIT Boulder Opal Stone + VIDEO

    £17.26
    £17.78 P&P
    25 bids
    2d 13h
    5⁣⁣B⁣ ⁣⁣S⁣I⁣ ⁣⁣R⁣⁣L⁣⁣ ⁣W⁣⁣⁣⁣⁣5⁣⁣ ⁣⁣F⁣⁣⁣⁣I⁣
  • 💎 7.92ct Free Form Cabochon Natural Winton Matrix Boulder Opal - Queensland Gem - Image 1 of 4

    💎 7.92ct Free Form Cabochon Natural Winton Matrix Boulder Opal - Queensland Gem

    £6.30
    £13.33 P&P
    5 bids
    1d 3h
    ⁣Z⁣⁣⁣⁣⁣2⁣⁣⁣⁣ ⁣R⁣2⁣⁣ ⁣⁣⁣8⁣⁣I⁣⁣ ⁣⁣0⁣6⁣ ⁣I⁣Z⁣
  • 0.85ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO - Image 1 of 4

    0.85ct Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO

    £2.63
    £17.78 P&P
    8 bids
    2d 13h
    V⁣0⁣⁣ ⁣⁣⁣⁣⁣⁣S⁣⁣⁣⁣3⁣ ⁣⁣⁣⁣X⁣J⁣ ⁣⁣O⁣4⁣⁣⁣ ⁣A⁣
  • 64.65cts Koroit Boulder Opal Double Sided Pre Rubbed Gemstone - Image 1 of 4

    64.65cts Koroit Boulder Opal Double Sided Pre Rubbed Gemstone

    £149.09
    or Best Offer
    £3.42 P&P
    0 bids
    10h 7m
    S⁣р⁣5⁣X⁣o⁣n⁣ ⁣s⁣B⁣o⁣H⁣ ⁣7⁣T⁣r⁣e⁣d⁣ ⁣7⁣⁣Y⁣ ⁣⁣⁣⁣⁣B⁣E⁣
  • Boulder Opal Cabochon, 33ct polished stone. ready to set into jewellery. - Image 1 of 4

    Boulder Opal Cabochon, 33ct polished stone. ready to set into jewellery.

    £52.67
    or Best Offer
    £2.70 P&P
    Click & Collect
    S⁣р⁣J⁣o⁣E⁣n⁣s⁣ ⁣T⁣4⁣ ⁣Q⁣o⁣r⁣L⁣ ⁣R⁣1⁣ ⁣e⁣Y⁣d⁣6⁣⁣ ⁣⁣⁣⁣
  • Multi Color Australian Koroit Boulder Opal Cabochon Gemstone 31.15 Ct 22x27x6 mm - Image 1 of 4

    Multi Color Australian Koroit Boulder Opal Cabochon Gemstone 31.15 Ct 22x27x6 mm

    £91.07
    or Best Offer
    Free postage
    M⁣8⁣Ѕ⁣ ⁣Y⁣1⁣ ⁣R⁣p⁣o⁣n⁣s⁣6⁣o⁣ ⁣r⁣Z⁣B⁣e⁣d⁣ ⁣⁣⁣1⁣⁣B⁣⁣ ⁣
  • 1.4kg/7485ct Huge Unopened Yowah Nut Boulder Opal Australia 100%Natural Gamble - Image 1 of 4

    1.4kg/7485ct Huge Unopened Yowah Nut Boulder Opal Australia 100%Natural Gamble

    £207.97
    or Best Offer
    £14.49 P&P
    K⁣S⁣p⁣о⁣n⁣D⁣ ⁣s⁣o⁣7⁣r⁣e⁣d⁣⁣H⁣ ⁣4⁣V⁣ ⁣⁣Q⁣⁣⁣X⁣ ⁣⁣3⁣7⁣
  • 0.65ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    0.65ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £0.73
    £17.78 P&P
    1 bid
    3d 13h
    ⁣6⁣⁣G⁣⁣⁣ ⁣⁣⁣⁣⁣⁣Q⁣⁣⁣F⁣ ⁣L⁣⁣⁣⁣S⁣⁣ ⁣Z⁣⁣B⁣⁣
  • Boulder opal 4.15ct 15 x 10mm Australian opal natural solid unset stone Winton - Image 1 of 4

    Boulder opal 4.15ct 15 x 10mm Australian opal natural solid unset stone Winton

    £74.88
    £13.93 P&P
    G⁣⁣⁣⁣⁣⁣R⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣F⁣H⁣ ⁣⁣G⁣4⁣⁣ ⁣1⁣⁣
  • 19g Koroit Boulder Queensland Opal Australian Rough piece red fire Bo-162 - Image 1 of 4

    19g Koroit Boulder Queensland Opal Australian Rough piece red fire Bo-162

    £141.73
    Free postage
    Click & Collect
    ⁣⁣U⁣⁣⁣R⁣⁣ ⁣⁣⁣3⁣⁣L⁣⁣⁣ ⁣⁣T⁣⁣⁣⁣⁣⁣⁣E⁣⁣⁣ ⁣
  • 5.6ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    5.6ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £5.56
    £17.78 P&P
    11 bids
    2d 13h
    ⁣E⁣7⁣⁣⁣ ⁣L⁣⁣6⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣T⁣⁣6⁣ ⁣⁣⁣8⁣⁣Y⁣⁣
  • 1.6ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    1.6ct Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £9.26
    £17.78 P&P
    14 bids
    2d 13h
    R⁣⁣⁣G⁣⁣⁣⁣⁣ ⁣4⁣8⁣ ⁣⁣D⁣⁣L⁣⁣⁣⁣ ⁣⁣⁣⁣R⁣⁣J⁣⁣⁣
  • 68g 3 x Koroit Boulder Queensland Opal Australian Rubs Bo-163 - Image 1 of 4

    68g 3 x Koroit Boulder Queensland Opal Australian Rubs Bo-163

    £141.73
    Free postage
    Click & Collect
    X⁣⁣C⁣⁣⁣⁣ ⁣4⁣U⁣⁣ ⁣⁣⁣A⁣⁣H⁣⁣ ⁣⁣N⁣⁣⁣⁣⁣P⁣ ⁣J⁣⁣
  • Queensland Boulder Opal - Image 1 of 3

    Queensland Boulder Opal

    £239.88
    or Best Offer
    £2.70 P&P
    Click & Collect
    S⁣8⁣p⁣o⁣n⁣J⁣s⁣ ⁣M⁣B⁣o⁣r⁣е⁣d⁣⁣⁣ ⁣I⁣⁣L⁣⁣ ⁣⁣⁣A⁣9⁣⁣ ⁣
  • 5.55cts Queensland Boulder Opal Stone. Polished Australian Gem For Jewellery - Image 1 of 2

    5.55cts Queensland Boulder Opal Stone. Polished Australian Gem For Jewellery

    £47.48
    or Best Offer
    £3.50 P&P
    Click & Collect
    S⁣E⁣7⁣p⁣ ⁣K⁣I⁣ ⁣W⁣o⁣5⁣n⁣ѕ⁣ ⁣J⁣o⁣r⁣X⁣ ⁣Z⁣W⁣ ⁣U⁣e⁣d⁣⁣⁣⁣
  • Boulder opal 3.07ct set of 2 Australian natural solid loose stone parcel Winton - Image 1 of 4

    Boulder opal 3.07ct set of 2 Australian natural solid loose stone parcel Winton

    £63.85
    £13.93 P&P
    9⁣⁣J⁣⁣⁣⁣ ⁣Y⁣⁣⁣E⁣ ⁣S⁣⁣4⁣ ⁣I⁣⁣J⁣ ⁣Z⁣⁣9⁣⁣⁣ ⁣⁣⁣
  • 227g Koroit Boulder Queensland Opal Australian Rough Nut piece green fire Bo-111 - Image 1 of 4

    227g Koroit Boulder Queensland Opal Australian Rough Nut piece green fire Bo-111

    £200.41
    Free postage
    Click & Collect
    6⁣⁣⁣I⁣⁣ ⁣G⁣A⁣ ⁣⁣⁣⁣L⁣A⁣ ⁣V⁣⁣O⁣⁣ ⁣⁣⁣⁣Y⁣8⁣⁣ ⁣⁣
  • 32.45TCW Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO - Image 1 of 2

    32.45TCW Natural AUSTRALIAN YOWAH Boulder Opal Stone + VIDEO

    £407.41
    or Best Offer
    £14.81 P&P
    14 watching
    ⁣L⁣4⁣ ⁣4⁣H⁣⁣⁣⁣⁣ ⁣6⁣⁣⁣R⁣⁣ ⁣5⁣C⁣⁣ ⁣⁣D⁣⁣V⁣ ⁣⁣M⁣
  • Boulder opal 67.65ct set of 5 Australian natural solid loose stone Winton parcel - Image 1 of 4

    Boulder opal 67.65ct set of 5 Australian natural solid loose stone Winton parcel

    £74.88
    £13.93 P&P
    ⁣6⁣⁣3⁣⁣⁣⁣ ⁣⁣0⁣⁣6⁣⁣ ⁣⁣R⁣⁣A⁣⁣⁣ ⁣⁣6⁣⁣⁣⁣⁣⁣
  • 59.80 TCW Natural AUSTRALIA KOROIT Boulder Opal - Image 1 of 4

    59.80 TCW Natural AUSTRALIA KOROIT Boulder Opal

    £259.26
    or Best Offer
    £14.81 P&P
    ⁣⁣T⁣9⁣⁣⁣ ⁣E⁣⁣⁣⁣P⁣ ⁣Q⁣⁣V⁣⁣ ⁣7⁣0⁣⁣ ⁣⁣F⁣T⁣ ⁣9⁣⁣
  • Boulder opal 2.65ct 14 x 7mm Australian opal natural solid unset stone Winton - Image 1 of 4

    Boulder opal 2.65ct 14 x 7mm Australian opal natural solid unset stone Winton

    £154.79
    £11.61 P&P
    8⁣⁣⁣⁣⁣Q⁣⁣ ⁣⁣⁣⁣O⁣S⁣ ⁣H⁣I⁣⁣⁣⁣ ⁣V⁣H⁣ ⁣⁣⁣⁣O⁣⁣
  • Boulder Opal Rough Parcel Blue Purple Koroit Matrix 1820 Cts Lapidary 364 Grams - Image 1 of 4

    Boulder Opal Rough Parcel Blue Purple Koroit Matrix 1820 Cts Lapidary 364 Grams

    £386.96
    £58.77 P&P
    A⁣⁣E⁣ ⁣5⁣⁣⁣⁣V⁣ ⁣2⁣C⁣⁣⁣⁣ ⁣⁣⁣⁣G⁣⁣O⁣⁣⁣⁣⁣ ⁣N⁣
  • Boulder opal 2.68ct 12 x 10mm Australian opal natural solid unset stone Winton - Image 1 of 4

    Boulder opal 2.68ct 12 x 10mm Australian opal natural solid unset stone Winton

    £22.64
    £13.93 P&P
    ⁣8⁣I⁣ ⁣N⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣G⁣⁣⁣ ⁣⁣⁣L⁣Y⁣⁣⁣⁣ ⁣F⁣X⁣
  • 22.9CT Yowah Nut BOULDER OPAL Australia Polished Rainbow Multicolor 100% Natural - Image 1 of 4

    22.9CT Yowah Nut BOULDER OPAL Australia Polished Rainbow Multicolor 100% Natural

    £58.02
    or Best Offer
    £17.38 P&P
    1⁣G⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣9⁣B⁣ ⁣⁣P⁣⁣⁣⁣⁣⁣⁣J⁣⁣ ⁣M⁣⁣W⁣
  • 815ct Huge Unopened Yowah Nut Boulder Opal Australia 100% Natural Gamble Maxi - Image 1 of 4

    815ct Huge Unopened Yowah Nut Boulder Opal Australia 100% Natural Gamble Maxi

    £87.04
    or Best Offer
    £17.38 P&P
    L⁣V⁣ ⁣⁣L⁣K⁣ ⁣⁣⁣W⁣⁣G⁣ ⁣B⁣⁣M⁣⁣⁣ ⁣C⁣⁣⁣⁣8⁣⁣ ⁣M⁣⁣
  • 35 TCW BRIGHT FIRE Natural AUSTRALIAN Boulder Opal Stone +VIDEO - Image 1 of 4

    35 TCW BRIGHT FIRE Natural AUSTRALIAN Boulder Opal Stone +VIDEO

    £355.56
    or Best Offer
    £14.81 P&P
    13 watching
    ⁣N⁣G⁣⁣ ⁣Q⁣1⁣ ⁣⁣Y⁣E⁣⁣ ⁣⁣⁣⁣Z⁣M⁣⁣ ⁣0⁣⁣S⁣⁣⁣ ⁣⁣⁣
  • Koroit Boulder Opal Parcel 37g Queensland, Australia - Image 1 of 4

    Koroit Boulder Opal Parcel 37g Queensland, Australia

    £1.13
    £2.94 P&P
    1 bid
    6d 4h
    Y⁣I⁣ ⁣⁣C⁣⁣⁣K⁣ ⁣P⁣C⁣ ⁣G⁣E⁣ ⁣⁣M⁣Y⁣ ⁣D⁣⁣⁣ ⁣⁣⁣⁣⁣⁣
  • Boulder opal 7.65ct 23 x 9mm Australian opal natural solid unset stone Winton - Image 1 of 4

    Boulder opal 7.65ct 23 x 9mm Australian opal natural solid unset stone Winton

    £140.27
    £11.61 P&P
    R⁣⁣⁣⁣V⁣⁣ ⁣Y⁣N⁣ ⁣⁣⁣⁣⁣3⁣⁣⁣E⁣⁣⁣ ⁣A⁣⁣4⁣ ⁣⁣3⁣⁣
  • 365ct Huge Unopened Yowah Nut Boulder Opal Australia 100% Natural Gamble Maxi - Image 1 of 4

    365ct Huge Unopened Yowah Nut Boulder Opal Australia 100% Natural Gamble Maxi

    £55.69
    or Best Offer
    £17.38 P&P
    ⁣M⁣3⁣ ⁣7⁣7⁣ ⁣⁣⁣Z⁣0⁣ ⁣K⁣⁣W⁣ ⁣L⁣⁣⁣K⁣⁣ ⁣⁣⁣⁣⁣⁣⁣
  • Boulder opal 8.80ct 23.7 x 15.7mm Australian natural solid loose stone Winton - Image 1 of 4

    Boulder opal 8.80ct 23.7 x 15.7mm Australian natural solid loose stone Winton

    £532.07
    £11.61 P&P
    ⁣L⁣B⁣ ⁣⁣⁣Y⁣T⁣⁣ ⁣G⁣E⁣ ⁣2⁣X⁣⁣⁣ ⁣P⁣X⁣ ⁣⁣⁣P⁣⁣ ⁣⁣⁣
  • 43g Koroit Boulder Queensland Opal Australian Rough Piece Bo-147 - Image 1 of 4

    43g Koroit Boulder Queensland Opal Australian Rough Piece Bo-147

    £82.07
    Free postage
    Click & Collect
    6⁣Y⁣ ⁣⁣⁣5⁣C⁣⁣⁣⁣⁣⁣⁣⁣ ⁣G⁣⁣⁣⁣⁣R⁣⁣⁣ ⁣E⁣⁣X⁣ ⁣
  • 1.4ct MULTICOLOURED Natural AUSTRALIAN Boulder MATRIX Opal Stone +VIDEO - Image 1 of 4

    1.4ct MULTICOLOURED Natural AUSTRALIAN Boulder MATRIX Opal Stone +VIDEO

    £0.73
    £17.78 P&P
    1 bid
    3d 14h
    R⁣N⁣⁣⁣ ⁣0⁣T⁣ ⁣⁣⁣B⁣O⁣ ⁣H⁣⁣5⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣7⁣L⁣⁣
  • Huge 3010CT Yowah Nut BOULDER OPAL Australia Natural Vivid Multicolors Massive🌈 - Image 1 of 4

    Huge 3010CT Yowah Nut BOULDER OPAL Australia Natural Vivid Multicolors Massive🌈

    £338.57
    or Best Offer
    £14.49 P&P
    O⁣V⁣ ⁣⁣⁣⁣⁣8⁣⁣H⁣ ⁣D⁣⁣8⁣ ⁣⁣8⁣H⁣⁣⁣⁣⁣ ⁣R⁣⁣U⁣⁣ ⁣
  • Boulder opal 5.88ct 12.7 x 15mm Australian opal natural solid loose stone Winton - Image 1 of 4

    Boulder opal 5.88ct 12.7 x 15mm Australian opal natural solid loose stone Winton

    £156.72
    £13.93 P&P
    6⁣V⁣S⁣ ⁣p⁣8⁣Z⁣o⁣ ⁣U⁣B⁣ ⁣n⁣s⁣4⁣4⁣о⁣r⁣e⁣d⁣⁣⁣⁣⁣ ⁣S⁣⁣4⁣
  • Koroit Boulder Opal Gemstone Cabochon. Australian Opal - Image 1 of 4

    Koroit Boulder Opal Gemstone Cabochon. Australian Opal

    £83.17
    or Best Offer
    £2.70 P&P
    S⁣р⁣o⁣D⁣n⁣X⁣s⁣ ⁣B⁣o⁣D⁣r⁣ ⁣U⁣e⁣d⁣W⁣⁣ ⁣H⁣Z⁣ ⁣⁣8⁣8⁣ ⁣⁣S⁣

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