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Exceptional collector Koroit boulder opal nut gem with bright turquoise blue, emerald green, and deep blue fire. Excellent nut pattern and a center area of crystal opal with turquoise blue fire.
The body of this stone is deep red and brown ironstone with the classic koroit nut pattern.

If you are a Koroit afficianado, you know how rare this stone is.

Weighs 78.11 carats.

Measures about 34 mm x 37 mm x 8.5 mm at widest points.

We will ship this item express shipping anywhere in the world at no extra cost to you. Combine other purchases with this one and they will ship for free too.

Koroit Boulder Opal Cabochon Australian Opal 78 Carats


Only 1 available


  • Handmade Supply
  • Materials: koroit boulder opal, opal
  • Ships worldwide from United States
  • Feedback: 1610 reviews
  • Favorited by: 933 people