Patent ID: 9210973
Filing Date: 2015-12-15
Classification: A44C

Abstract:
1. A system for grading a cut of a gemstone, the system comprising: a gem scanner adapted to scan plurality of actual facets of an actual cut or polished gemstone and determine scanned facet parameters pertaining to individual actual cut or polished facets of the plurality of actual facets; and a control module communicably coupled to the gem scanner to receive the determined scanned facet parameters of the plurality of actual cut or polished facets of the actual gemstone, wherein the control module is adapted to generate an actual 3D model for the actual gemstone from the scanned facet parameters and an idealized 3D model for an idealized gemstone by generating idealized facet parameters of idealized versions of the actual facets of the actual gemstone under assessment, wherein the idealized 3D model is generated by averaging idealized facet parameters of groups of idealized facets of the same kind on the same gemstone and normalizing those idealized facets of the gemstone to the averaged idealized facet parameter; and wherein the control module is adapted to determine a quality of the cut of the actual gemstone, wherein the determination is made based at least in part on comparing the actual 3D model with the idealized 3D model by superimposing the actual 3D model over the idealized 3D model to determine overlapping areas, non-overlapping areas, and overhanging areas between the plurality of actual facets of the actual gemstone and corresponding idealized facets of the idealized gemstone.