The Boulder Opal Ball is 29 mm and the Silver plate is useful for engraving. The sculptured block of wood has received a few minor marks on the back from having been on display for many years.
We do not import, promote or sell Synthetic or Man Made Opal, nor any non-Australian mined Opal.
On 27 July, 1993, The Australian Government proclaimed Opal as the National Gemstone of Australia!
