Welo Opal from Ethiopia. Rough is approximately: 12.08mm by 11.65mm by 8.48mm 1.03 grams in weight This welo opal has some nice color play. There appears to be one crack I can see but may be more. There is a mix of dirt and matrix left on this piece still. Depending on climate this opal will take on moisture in the air making it more translucent or opaque. Colors may vary depending on lighting. This is being advertised as cutting rough. I am happy to provide additional photos and videos as needed. Photos and video taken in a Photo Booth with LED lighting.