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Black Opals Gemma AI Opal 101

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31st Jan 2026
opalsmarina

181.25CT KOROIT BOULDER OPAL ROUGH SS01020

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3 watching
Details
SKU
Dimensions (mm)
51 x 43 x 8mm
Weight (cts)
181.25
Type
Rough
Colours
Description

NATURALROUGH OPAL FROM KOROIT QLD AUSTRALIA

NATURAL ROUGH COLOR FROM THE OPAL FIELD 

The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines. Here opal is found as a kernel in small concretions. 

Shipping
Shipping provider Shipping to Australia Shipping to rest of world Combined Shipping (Australia) Combined Shipping (rest of the world)
FedEx
/ 5 days
/ 7 days
on orders with 3 items or more
on orders with 3 items or more
DHL
/ 5 days
/ 10 days
on orders with 3 items or more
on orders with 3 items or more
Express Shipping
/ 5 days
/ 10 days
on orders with 3 items or more
on orders with 3 items or more
Store
181.25CT KOROIT BOULDER OPAL ROUGH SS01020

opalsmarina
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Nsw, Australia
Owned by opalsmarina
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View all 8,328 Feedback

opalsmarina is currently on holidays and may take longer than normal to respond.

Recent Feedback
  • ilovemortenharket
    ilovemortenharket
    Positive

    Stunning opal Great service all round. Thank you and happy new year!

6.25CT SILVER GEM COOBER PEDY OPAL RING J33 6.25CT SILVER GEM COOBER PEDY OPAL RING J33
  • pompey27
    pompey27
    Positive

    Hy Nutcha Super stone with nice colours, thank you,

5.50CT KOROIT BOULDER OPAL ST571 5.50CT KOROIT BOULDER OPAL ST571
  • ywelsh
    ywelsh
    Positive

    Lovely pendant, fast delivery. Thank you very much!

4.80CT QUEENSLAND BOULDER OPAL PENDANT N32 4.80CT QUEENSLAND BOULDER OPAL PENDANT N32
  • ywelsh
    ywelsh
    Positive

    Fantastic and fast delivery!

5.90CT QUEENSLAND BOULDER OPAL OOO25 5.90CT QUEENSLAND BOULDER OPAL OOO25
  • ywelsh
    ywelsh
    Positive

    Great earrings, fast delivery. Many thanks!

7.90CT STUNNING EARINGS SET IN SILVER N21 7.90CT STUNNING EARINGS SET IN SILVER N21
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Audit

The Opal Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Shipping Details

Costs:
Transit:
10 days via DHL
Ships from:
Australia

Payment Options

  • paypal
  • stripe
This seller adds 10.00% tax to transactions in Australia.
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Overview

Listing Type : Standard
Product ID : 1067552
Starts : 6th January 2026 01:25 pm PST
* All prices are in USD

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