This is a polished boulder opal. It's a very beautiful opal rough stone. The size is approximately 86.5 x 39 x 47mm (width x length x height), and it weighs 217.5g. It's new and unused, with no noticeable scratches or abrasions. However, as it is a natural stone, there may be fine scratches or cracks. Please check the photos. If you are satisfied, please proceed with your purchase.