What are the four C's that are referred to when shopping for diamonds?

Answer:
The four Cs to consider when shopping for diamonds are cut, color, clarity and carat weight. These are the factors by which every diamond is judged: every diamond is unique in these factors based on the combination involved. All four Cs are quality categories.
  • The cut of a diamond refers to how well the diamond's proportions conform to an ideal standard. It is a measure of the quality of the cut. The shape of the stone is also called cut and this is often confusing, but when referring to the four Cs cut means the quality of the cut. Types of cuts include:
    • round brilliant
    • marquis
    • emerald
    • pear
    • and more, depending on the raw stone.
  • There are a number of different grades of color for diamonds and diamonds of different colors.
    • Colorless diamonds are rated on a scale from D to Z, with D being the clearest and most rare and Z being visibly yellow.
    • Coloured diamonds -- 27 named colors, plus hyphenated color names -- are graded ranging from Faint to Fancy Vivid in nine steps.
  • The clarity of a diamond indicates whether or not the diamond has visible, gradable features -- visible at 10X. The rarest and most expensive diamonds are flawless; most have gradable features. Grades include with sub-categories not listed:
    • Flawless
    • Very slightly included
    • Slightly included
    • Included
  • The carat weight of a diamond is sometimes equated to its 'size'. A quarter of a carat diamond (0.25ct) is smaller than a one (full) carat diamond. One carat weighs 0.20 grams.
Contributor: Crystal
First answer by CeCeBreslin. Last edit by Diamondshoppe. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 69 [recommend question].