Australian Cut Boulder Opal Stone - BOC00641. On offer is a beautiful Australian Boulder opal from central Queensland. A beautiful piece that could be used to create stunning jewellery. Measurements are generally rounded down and approximate Colour : Please note the camera has been white-balanced to give truer colours NO Photo Shop enhancement. Total Carat Weight (TCW) : 24.7 Main Stone Size (LxW mm) : 28.9x15.6 Depth/Thickness (mm) : 7.2 Cut / Shape : Freeform Region : Queensland Main Stone Treatment : None Main Stone Creation : Natural Colour : Multi-Coloured. The item "Australian Cut Boulder Opal Stone BOC00641" is in sale since Saturday, August 29, 2020. This item is in the category "Jewellery & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Boulder Opals". The seller is "opalshopaustralia" and is located in Elanora Heights.