Diamond Color

Diamond Color

General Facts

  • Color is one of the 4 C’s
  • Diamond Color refers to the lack of color in the stone
  • A chemically pure and structurally perfect diamond has no hue
  • Diamonds are graded on a scale of D-Z to measure the degree of colorlessness

Colorless Grading Scale

  • Before GIA universalized the D-to-Z Color Grading Scale, a variety of other systems were used loosely, from A, B, and C (used without clear definition), to Arabic (0, 1, 2, 3) and Roman (I, II, III) numbers, to descriptive terms like “gem blue” or “blue-white,” which are notorious for misinterpretation.
  • So the creators of the GIA Color Scale wanted to start fresh, without any association with earlier systems.
  • Thus the GIA scale starts at the letter D.
  • Very few people still cling to other grading systems, and no other system has the clarity and universal acceptance of the GIA scale.

Are Diamonds Graded as Zs Considered Fancy-Color?

  • No. Naturally colored diamonds outside the normal color range are called fancy-color diamonds.
  • The FTC provides no guidelines for the use of the term “fancy-color” in the US, but there is general agreement in the international trade that fancy-color diamonds are either yellow or brown diamonds that have more color than a Z master stone or they exhibit a color other than yellow or brown.

Tips on Diamond Color

  • It is important to note that round diamonds will generally show color best when they are compared to all the different fancy shapes.
  • For example, when comparing a round H color diamond vs. an emerald cut H color diamond, the round may look whiter than the emerald cut due to the differences in their faceting style. They round have brilliant facets, while the emerald features a step cut or mirror type of faceting.
  • When examining the color of your diamond, you should look at the stone from a top bird's eye view and from the side profile view.
  • The top birds-eye view will show how the diamond is going to look a majority of the time as you look at it in the ring. This view will make the color look more favorable.
  • The side profile view does not have as much light return distracting your eyes and will show you the true color of the diamond.
  • Always return to the bird's eye view to make your final decision because this is how you will view your diamond most often.

Our recommendations:

  • We do specialize in colorless diamonds here at Princess Bride Diamonds, but we find that most clients start noticing the warmer tint of color in a H.
  • If you are trying to decide what color is best for you, ask yourself this question:
  • What color metal do you like for your ring?
    • Diamond color tend to be the most noticeable when set in a white gold or platinum ring due to the contrast of the metal against the diamonds.
    • If you are choosing white gold or platinum, we recommend shopping in the D-G color range.
    • If you are choosing yellow or rose gold it will be harder to tell that the diamond has a shade of yellow because the metal somewhat camouflages it or makes it less obvious to the eye.
    • We recommend shopping D-I color to pair with a yellow or rose gold ring.
    • People often assume that by choosing a yellow or rose gold ring, color is not as important, but colorless diamonds will have an extremely beautiful contrast up against colored metal.


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