Boulder opal 5.18ct 19 x 9.9mm Australian opal natural solid loose stone Winton

DETAILS: No7215 Natural solid boulder opal loose stone 5.18ct
Stone Natural solid boulder opal
Carat 5.18ct
Dimensions 19.76mm x 9.98mm Thickness 3.09mm (at the longest point)
Shape Freeform
Colour Light green, brown yellow
Transparency Opaque
Origin Winton, Queensland, Australia
Note: *The surface has slight concave.
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.