156.51 carats Monster Solid Australian Boulder Opal (10549)

Description

Amazing pattern of super fine lines of colour creating a mass of twinkling red, greens and blues in this enormous natural genuine solid boulder opal with the wonderful rich deep red and caramel colored ironstone adding contrast and creating a magical pattern.  From the mines of outback Queensland Australia,  this wonderful gemstone weighs a whopping 156.51 carats and measures 47.0mm X 30.5mm X 12.0mm thick.