What is a detailed map showing a diamond's clarity characteristics called?

The detailed map showing a diamond's clarity characteristics is referred to as a plot. This terminology specifically describes the graphical representation that outlines internal and external features of a diamond, such as inclusions and blemishes, which can affect its clarity grading.

A plot is integral to understanding a diamond's unique characteristics and is often included in the certification report from grading laboratories like GIA. The clarity plot provides valuable insights into the specific clarity characteristics that may distinguish one diamond from another, allowing buyers and sellers to assess the stone's quality more accurately.

In contrast, terms like blueprint, diagram, and model do not specifically denote a mapping of clarity characteristics in diamonds. A blueprint often refers to architectural plans, a diagram serves a more general illustrative purpose without detailing clarity traits, and a model may signify a 3D representation of an object without providing the explicit clarity details found on a plot. Thus, the term "plot" accurately encapsulates the essence of how clarity is assessed and documented in the context of diamonds.