Gorgeous 34.22ct top luster Australian Boulder Opal

The luster of this boulder opal is amazing. It has a liquid reflection, but is not metallic, creating a lightly mirrored surface that doesn’t impede its display. The well marbled matrix of this piece contains demure veins of natural opal crystal with natural blue and green flashes. It has great size, measuring 30.9mm x 16.7mm x 7.3mm, and is untreated.