Brown hot air balloons floating through a chocolate sky. Koroit opal conquers up the imagination! Very beautiful.
$950.00
This boulder opal from Bill Kasso is absolutely stunning with it's variations of blues and...
$350.00
This boulder opal from Bill Kasso is amazing with it's subtle rolling flashes of blue...
$1,500.00
Green boulder opal is my personal favorite. Flashes of green in this black boulder opal...
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