An antique platinum set crystal opal cabachon from Cooper Pedy, Australia with incredble play of colour and rare red, orange, yellow, blue and green cross hatched colour dispplay. The quality of this opal is superior, there is no potch remaining on the under side which indicates the gem quality opal is stable and of the highest calibre of crystal opal. A straight bar brooch fitting the reverse. Estimated Total Opal Weight: 18.71cts
