| Girdle | Girdle | Girdle curve of gem | Curve |
| Plane | Plane | Plane of gem | Plane |
| Profiles | Prof | Profile curves at the origin of the XY plane | Curve |
| Parameters | Pos | Positions (girdle parameters) of the prongs | Number |
| Width | Width | Width of prongs | Number |
| Height | Height | Height of prongs | Number |
| Shape | Shape | Values to shape the prongs | Number |
| Long Up | LongA | Upper length (above the gem plane) of the prongs | Number |
| Long down | LongB | Bottom length (below the gem plane) of the prongs | Number |
| Depth | Depth | Depth of insertion of the prong into the gem | Number |
| Cap | Cap | One or two values to cover the ends. 0 = Open. 1 = Flat. 2 = Round. | Integer |