High clarity gemstone facet and internal imaging analysis

A system, comprising,

• a computer with a processor and a memory, in communication with at least one light source and a digital camera, the computer configured to cause the at least one light source to illuminate a sample diamond, wherein the sample diamond is configured on a stage and comprises a diamond table facet and a number of diamond facets, the computer configured to cause the at least one light source to emit light to illuminate a sample diamond table facet with diffused light by directing the emitted light through a diffuser, cause the digital camera to capture surface images of the diamond table facet under the diffused light, cause illumination of the number of diamond facets, other than the diamond table facet, with collimated light by directing the emitted light through a collimator, cause the digital camera to capture surface images of the number of diamond facets, other than the diamond table facet under the collimated light, cause illumination of the diamond table facet with dark field illumination, cause the digital camera to capture internal images through the diamond table facet at a plurality of focal depths under the dark field illumination, and cause the digital camera to capture internal images through the number of diamond facets, other than the diamond table facet, at a plurality of focal depths under the dark field illumination, process the set of surface images of the diamond table facet, the set of surface images of the number of diamond facets, the set of internal images through the diamond table facet, and the set of internal images of through the number of diamond facets to identify one or more clarity features from the diamond table facet or any facet of the sample diamond, and assign a clarity grade for the sample diamond based on the one or more identified clarity features.