Which term describes a surface feature where a portion of the original rough surface dips below the polished surface?

Which term describes a surface feature where a portion of the original rough surface dips below the polished surface?

• A. Habit
• B. IndN
• C. Inclusion
• D. Internal Graining

Answer: (B)

Indentations on a polished diamond reveal how a remnant from the rough stone sits relative to the polished surface. When a portion of that original rough surface remains and sits lower than the surrounding plane, it’s called an indented natural, abbreviated IndN. This term specifically captures a recess in the natural surface rather than a feature inside the stone or a protruding edge. The other terms describe different things: a crystal’s habit is its external shape, an inclusion is material inside the diamond, and internal graining refers to internal growth patterns that may appear as lines but don’t describe a surface depression caused by the natural being recessed.

Indentations on a polished diamond reveal how a remnant from the rough stone sits relative to the polished surface. When a portion of that original rough surface remains and sits lower than the surrounding plane, it’s called an indented natural, abbreviated IndN. This term specifically captures a recess in the natural surface rather than a feature inside the stone or a protruding edge. The other terms describe different things: a crystal’s habit is its external shape, an inclusion is material inside the diamond, and internal graining refers to internal growth patterns that may appear as lines but don’t describe a surface depression caused by the natural being recessed.