Certificate of Appraisal Available 18 8-Carat Natural Opal Gemstone

Ethiopian Opal 18.86ct 24 X 17 X 8mm It is a large, dull, ivory-colored opal, perfect for rolling around in your hand to admire. The dazzling rainbow shimmer that bursts with various colors depending on the angle is beautiful. The black spot on the top of the back is not a crack, but a small speck of dust. I didn't realize it was there when I took the photo because it was stored in a black cotton case, but even checking the opal again now, it is perfectly fine. A gemological certificate is included. No cracks or scratches were found, but there may be defects I missed, so please refrain from purchasing if you are sensitive about such things. Condition: Signs of heavy use