This  is a polished Opal, that we previously intend selling it as pre-polished. However, a customer looked for their customer a black opal approximately similar to this pre-polished opal, so we decided to polished some of our pre-polished opals that we have on our website, nevertheless they decided to buy  a clear / white opal with play of colors one… so here it is before and after pictures comparation

pre polished

After Polished

It weights about o.6 ct. It measurements about 5 x 6 x 2.5 inches.