This is a lot of 2 x quality natural Lightning Ridge opals, which are shaped and polished, ready to be mounted or displayed.
They are both freeform shaped,the largest approx. 16mm by 6mm and 1.5mm thick. The other 9.5mm by 5mm, 1.50mm thick and a combined 2.30 carats.
They both have a dark grey background colour, with bright flashes of electric green across their surfaces.