Huge!!! No cracks, crazing or pits at all on this stone. Very clean with a great polish. Hard to find stones over 10 carats and usually they are at least $150 per carat. this is a great deal for a beautiful stone. The body tone is a light brownish orange with fire playing across the surface. Premium (AAA Grade) I have a lot, and I mean a lot, of Ethiopian opal here at my shop. If you are looking for something in particular, please send me an email.