Enter the carat weight, wholesale price per carat, and quality factor into the calculator to determine the diamond factor.

Diamond Factor Formula

The following formula is used to calculate the diamond factor.

DF = (C * W * Q) / 100

Variables:

  • DF is the diamond factor
  • C is the carat weight of the diamond
  • W is the wholesale price per carat ($)
  • Q is the quality factor of the diamond (on a scale of 1 to 10)

To calculate the diamond factor, multiply the carat weight of the diamond by the wholesale price per carat, then multiply the result by the quality factor of the diamond. Divide the final result by 100 to get the diamond factor.

What is a Diamond Factor?

A Diamond Factor is a term used in the diamond industry to refer to the four main characteristics that determine the value of a diamond. These characteristics, also known as the “Four Cs,” include carat (weight), cut, color, and clarity. Each of these factors significantly impacts the overall quality, appearance, and price of a diamond.

How to Calculate Diamond Factor?

The following steps outline how to calculate the Diamond Factor.


  1. First, determine the carat weight of the diamond (C).
  2. Next, determine the wholesale price per carat (W) ($).
  3. Next, determine the quality factor of the diamond (Q) on a scale of 1 to 10.
  4. Next, gather the formula from above = DF = (C * W * Q) / 100.
  5. Finally, calculate the Diamond Factor (DF).
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

carat weight of the diamond (C) = 2.5

wholesale price per carat (W) ($) = 1500

quality factor of the diamond (Q) = 8