Green Heliodor - a highly desirable and rare piece of rough

Eye clean stone, no feathers, but has a natural crystal separation that's clearly visible on one corner (might appear as a crack to some people but it's etched separation, you can tell by the texture of the reflection) 

Ukrainian Heliodor is almost never loupe clean. If using a Noble light , it looks like it has microscopic sugar, almost like dust - but no other light can pick this up. After cutting it's invisible and doesn't affect the cut stones at all. If you use a Noble light on Ukrainian cut heliodor, you'll see those micro inclusions. That's why I describe this piece as eye clean

Nice typical surface etching.

Completely damage free, could be an excellent specimen as well. 

32.252 grams / 161.26 carats / 45.2 x 38.2 x 15.7 mm