Boulder Opal 41.72 Carats

Item Information

Dimensions (mm) 40 x 18 x 8mm
Weight (carats) 41.72 carats
Boulder Opal 41.72 Carats

       Natural Opal Type 1
Variety:      Boulder Opal
Body Tone:     N5
Brightness:    B6 - Averabe
Transparency:  Opaque
Colour:      Green
Saturation:     H4 - Normal Tones
Outline:     Freeform
Profile:      Low Cabachon
Field of Origin: Queensland
Pattern:             Mixed
Directionality:  Weak or Blank One Angle
Percentage:   Over 80%
Inclusions:     None
Bag:       Bag 1

Loose Black, Dark, Light​, Boulder​


First Time EVER offered for sale!

Solid Black, Dark​, ​Light​ and Boulder Auction Opals from Lightning Ridge, Andamooka​, ​Coober Pedy​ and Queensland.​

The videos give you an accurate idea of what the opals look like. The play-of-color has not been enhanced or exaggerated. The sizes are accurate and only show a minute variance within each category.

Please message us if you would like any more information on each Opal.

These are vary in body tone from N1 to N9 in body tone and also split up into the sub tones from N1-N29.

These have been cut and are ready to go into production for ring or pendant settings or just as a collectors piece.

These are 100% natural Australian Opals and have not been treated or enhanced in any way.  


  • Body tone is as defined N1 Black to N9 Light.

  • Brightness has been estimated using a conservative assessment.

  • The size of the Opals is as stated 

This is a genuine release of a family collection at a genuine wholesale price to bring to market a collection that is rare, valuable and unique.


Australian Opal Cutters is a well known Australian Opal business that has been trading Opals since the 1960's. We have a lifetime guarantee on all items sold and are committed to bringing quality products at genuine wholesale prices to the international Opal Auctions family.

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1 bid placed so far

$20 seahorsesouls
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Audit Information

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

Pricing & Details

Bid Increment $1
Starting Bid $20
Auction ID 922463
Watchers 4 watching
Viewed 678 times
Starts 19th Apr 2021 9:20pm PDT
Ends 21st Apr 2021 3:22pm PDT

Shipping & Insurance

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FedEx $33.00 5 days
Standard Shipping - Tracked $10.00 21 days
Shipping Insurance all providers $7.00 (optional)

Austopalcutters Details

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