Boulder opal 10.19ct 23 x 15mm Australian opal natural solid loose unset stone

DETAILS: No8746 Natural solid boulder opal loose stone 10.19ct
Stone Natural solid boulder opal
Carat 10.19ct
Dimensions 23.32mm x 15.42mm Thickness 4.26mm (at the longest point)
Shape Freeform
Colour Light grey, green
Transparency Opaque
Origin Winton, Queensland, Australia
Note: *It has a slight undulating surface but smooth polish.
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.