Boulder opal 5.90ct 15.7 x 8.6mm Australian opal natural solid loose unset stone

DETAILS: No8961 Natural solid boulder opal loose stone
Stone Natural solid boulder opal
Carat 5.90ct
Dimensions 15.75mm x 8.68mm Thickness 4.01mm (at the longest point)
Shape Freeform
Colour Blue-grey, brown
Transparency Opaque
Origin Winton, Queensland, Australia
Note: *It has some natural clay and sand spots on the face.
Last picture is back of the stone.
All photos were taken under natural light, sunlight and LED lights.

*Please check the measurements before purchase, the items appear bigger in photos.