We have ordered this huge skull for one of our customers. The one shown weighs 5 kg. It is extremely clear, and finely carved, polished to a smooth clean finish.  Prices will vary according to weight and size.  A piece this large will sell for approx. $ 750.00  -   $ 1000.00. If you are interested in a special order piece, skulls, spheres, pyramids, etc.  contact us and we will give you an estimate price for what you are wanting.  It takes approximately 1 to 2 weeks for us to to receive the items.   For information or an estimate contact us at:    mswpagan@charter.net