Which term denotes a map of a diamond's inclusions, blemishes, and facet arrangement?

Which term denotes a map of a diamond's inclusions, blemishes, and facet arrangement?

• A. Polish Lines (PL)
• B. Polish
• C. Point naif
• D. Plot

Answer: (D)

This term refers to the diagram used to map a diamond’s internal features, surface blemishes, and how the facets are arranged. A plot is created during grading to chart the exact locations of inclusions and blemishes as seen under magnification, and it often shows the facet layout so graders can understand how features are oriented within the cut. This visual map becomes part of the grading report and directly supports evaluating clarity, symmetry, and how light may interact with the stone. It’s distinct from surface markings like Polish Lines or the polish itself, and from terms that aren’t used in standard grading.

This term refers to the diagram used to map a diamond’s internal features, surface blemishes, and how the facets are arranged. A plot is created during grading to chart the exact locations of inclusions and blemishes as seen under magnification, and it often shows the facet layout so graders can understand how features are oriented within the cut. This visual map becomes part of the grading report and directly supports evaluating clarity, symmetry, and how light may interact with the stone. It’s distinct from surface markings like Polish Lines or the polish itself, and from terms that aren’t used in standard grading.