These are the four characteristics used to determine a diamond’s value. The four Cs are:

  1. Cut refers to the diamond's reflective properties.
  2. Clarity refers to the occurrence of inner flaws or inclusions in the diamond.
  3. Color refers to the presence or absence of a diamond's color. Colorless diamonds allow more light to pass through than colored diamonds.
  4. Carat refers to the weight of the diamond. Larger diamonds are exponentially more valuable because of their rarity.