Opal orders Pendant

Yhis Winston Boulder Opal is set in Sterling Silver with Silver Dots around the Opal Setting. This Opal has orders a lot of Blue Flash in the Stone. Winston Opal is found in Australia. This Opal Cabochon measures 26mm by 19mm. Total weight of Pendant is 12.7 Grams. I Stamped the back of the Pendant with Sterling and PT for Authentication.