DETAILS: No4536A Natural solid boulder opal loose stone 6.79ct 
 Stone  Natural solid boulder opal 
 Carat   6.79ct 
 Dimensions   21.97mm x 9.68mm Thickness 3.46mm (at the longest point)
 Shape   Freeform
 Colour   Blue, purple, brown
 Transparency   Opaque 
 Origin   Winton, Queensland, Australia
 *It has an undulating surface but smooth polish.
 Last picture is back of the stone. 
   All photos were taken under natural light and sunlight.
*Please check the measurements before purchase, the items appear bigger in photos.

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