this is the organic shape of a head skull and is used as a pendant or make alpha in ZBrushyou can use it as an alpha in ZBrushyou can set stones anywhere on the body so easily preferred metal are gold(14k/18k) and platin(800/850/900/950)weight check pic this file has 2 formats for printing (obj/stl)you can use the ZBrush file for making alpha in Zbrush