54.18 cts Koroit opal oval calibrated stone [BMB1522]

BOULDER OPAL

This is a natural untreated boulder stone that has been well polished.

 It was mined in Koroit Queensland.

This stone is calibrated[cut to a standared size]  so it will fit in standard jewelry saving you setting costs.

 It is a stunning piece showing unique pattern 

The weights and sizes are approximate.

There is some reflection from the artificial lights on the stone.