This boulder opal from Bill Kasso is absolutely stunning with it's variations of blues and greens. The colors change and pop depending on the angle of light hitting this beautiful boulder opal! It would be a great ring stone.
$1,500.00
This boulder opal from Bill Kasso shows beautiful confetti-like blue and green sparkle. The ironstone...
$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...