A diamond's depth is defined as the distance from the table to which part?

The depth of a diamond is defined as the distance from the table to the culet. The table is the flat surface on the top of the diamond, while the culet is the point at the bottom where the facets meet. This measurement is important because it helps determine the overall proportions and appearance of the diamond. A deeper or shallower depth can affect how light interacts with the stone, ultimately influencing its brilliance and sparkle.

Understanding this definition is crucial for assessing the cut quality of a diamond. The proportion of a diamond's depth relative to its width contributes to how effectively it reflects light. A well-proportioned diamond will typically exhibit optimal brilliance, fire, and scintillation. Knowing that the depth is measured specifically to the culet helps in evaluating these qualities more accurately.