Melee gemstone sorting machine and methods for analysis

A system comprising:

• a table configured to rotate about a central point;
• and
• a set of modularly arranged subsystems disposed about the table, the set of subsystems including:
• a bowl feeder subsystem configured to receive at least one gemstone;
• a singulation subsystem including one or more singulation arms disposed at the table, wherein the one or more singulation arms are configured to, as the table rotates, orient the gemstone to a top-down orientation, and/or separate the gemstone to a threshold separation distance from another gemstone;
• and
• one or more metric subsystems comprising:
• one or more sensors mounted on a removable and replaceable test platform, the sensors configured to capture data relating to the gemstone;
• and
• at least one computing node configured to:
• obtain the data relating to the gemstone;
• derive, using the obtained data, one or more metrics relating to the gemstone;
• and
• generate an evaluation metric for each gemstone based on the one or more metrics for the gemstone;
• and
• a sorting subsystem configured to direct each of the one or more gemstones to one of a plurality of sorting bins according to the derived evaluation metric for each gemstone.

A method performed by a gemstone analysis system for analyzing and sorting a gemstone, the method comprising:

• receiving, at a bulk feeder subsystem, at least one gemstone;
• disposing the gemstone on a rotating table;
• orienting, by a singulation subsystem, the gemstone into a first orientation on the rotating table;
• capturing, by one or more cameras of a photo position detection subsystem, images of the gemstone;
• processing, by a computer vision model of the photo position detection subsystem, the images to determine an actual orientation of the gemstone;
• determining, by the computer vision model, whether the actual orientation of the gemstone is outside a threshold orientation range;
• responsive to determining that the actual orientation of the gemstone is outside the threshold orientation range, providing, by the computer vision model to a re-feed subsystem, an instruction to eject the gemstone;
• responsive to the providing of the instruction to eject the gemstone, providing, by an air burst element of the re-feed subsystem, a burst of air to the gemstone, thereby directing the gemstone to a bin disposed outside of the table;
• processing the gemstone by a set of metric subsystems, wherein the gemstone is rotated past subsystems via rotation of the table, wherein the processing comprises:
• generating, by each of set of metric subsystems, data relating to the gemstone;
• deriving, for each of the set of metric subsystems, one or more metrics for the gemstone from the data generated by each of the set of metric subsystems;
• and
• deriving an evaluation metric for the gemstone based on the derived metrics for the gemstone;
• and
• directing, by a sorting subsystem, the gemstone to a first sorting bin based on the derived evaluation metric for the gemstone.