Boulder opal 5.31ct 16 x 10mm Australian opal natural solid loose unset stone

DETAILS: No9157A Natural solid boulder opal loose stone 5.31ct
Stone Natural solid boulder opal
Carat 5.31ct
Dimensions 16.15mm x 10.69mm Thickness 4.03mm (at the longest point)
Shape Freeform
Colour Brown with multi-colour
Transparency Opaque
Origin Winton, Queensland, Australia
Note: 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.