Boulder opal 6.48ct 19.6 x 10mm Australian opal natural solid loose unset stone

DETAILS: No9048 Natural solid boulder opal loose stone
Stone Natural solid boulder opal
Carat 6.48ct
Dimensions 19.63mm x 10.05mm Thickness 4.10mm (at the longest point)
Shape Freeform
Colour Bright green blue
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.