DETAILS: No2116 Natural solid boulder opal loose stone 7.78ct 
 Stone  Natural solid boulder opal 
 Carat   7.78ct 
 Dimensions   17.31mm x 13.66mm Thickness 3.69mm (at the longest point)
 Shape   Freeform 
 Colour   Purple brown, blue, green
 Transparency   Opaque 
 Origin   Winton, Queensland, Australia
 Note   *It has an undulating surface but smooth polish.
Last picture is back of the stone. 
   All photos were taken under natural light.
 Coin show in photo is Australian two-dollar coin.Size 20.50mm diameter.
*Please check the measurements before purchase, the items appear bigger in photos.

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