Its a rough crystal that looks as if it were broken from a larger piece on one end, and the other has more of a sorta cubish shape to it some some flat faces. This chunk somewhere over the years broke off and is by itself now and just weighed out to ~30 carats. Given this is uncut and completely, flawlessly transparent, no cracks, hopefully of cutting quality, could anyone shed some light on what I should do with this or help me posatively identify it? I'm pretty close to pawning it, or seeing what they'll offer for it.