This is a black opal from Ethiopia. Please check the photos, which were taken in natural light from a window. The size is approximately 10 x 7.8 x 4.8mm, and it weighs 1.75ct. It is 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 the purchase.