There are a couple spots of damage-- notably one left of center of the specimen. Considering the size of the piece (and the relatively primitive methods of extraction) this is still in pretty good shape-- the general convex shape of the piece has saved the bulk of the crystals from damage, and it is just the one area jutting out that received a bruise. 

Even with this, the amount of color, luster and the sheer size make it stand out incredibly in any display case.  The light blue chrysocolla framing the dioptase doesn't hurt either.