Boulder opal fire, of blues & greens, dance throughout this gem. The shape lends itself to a perfect ring.
$1,500.00
This boulder opal from Bill Kasso shows beautiful confetti-like blue and green sparkle. The ironstone...
$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...
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