This large 100% Natural Ethiopian Black Opal Specimen would make an excellent addition to any collector of unique natural gemstones. The opal has bright red, green and orange fire colors. The fire colors on this opal are amazingly bright! The opal has cracks, and there for is graded as a "specimen". The cracks are visible on the surface, see photos and video for a closer look . WATCH A YOUTUBE VIDEO OF THIS OPAL https://youtu.be/BhzOSfCAydA Opal Size : 68.8 grams 5.4 X 3.7 X 2.8 cm Opal Type: Black Wello Ethiopian Opal Opal Cut By: Gabriel M.