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Fancy Coloured Diamonds Grading

Between the two categories of diamonds Fancy Color or White, the color of a diamond affects its price, no matter into which category the diamond falls. What is important to know is that the grading for each group is entirely different. 

Fancy Color Diamonds

Fancy Color Diamonds or FCDs are rare in general; in fact, higher the intensity grade rarer is the FCD. According to the Gemological Institute of America or GIA a scale of nine grades is used to grade FCDs. 

1. Faint -> 2.Very Light -> 3.Light -> 4.Fancy Light -> 5.Fancy -> 6.Fancy Dark -> 7.Fancy Intense -> 8.Fancy Deep -> 9.Fancy Vivid

 

Higher grades of FCDs are rare and therefore carry a greater monetary value.

The lowest grade on the scale is “Faint” which is the borderline that separates FCDs from White diamonds (Z color). According to the GIA, there are three main elements for grading FCDs:

1. Hue •Tone •Saturation

Understanding the differences between hue, tone, and saturation is challenging.

 1. Hue

Hue or color refers to the main color of the diamond such as Red, Blue, Pink or Yellow; there are 27 hues in all.  While considering the 27 different colors, it is important to note that sometimes hues include a combination of main and modifying colors.  For example, a Greenish-Yellow diamond may contain a Yellow hue and modifying tints of Green. 

When a diamond has more than one color, the last color mentioned is the main color of the stone. You should keep this in mind even when considering diamonds that have a third, fourth and fifth color!

Here is a helpful guide:

  • Purple pink diamond - The ratio between the colors is almost completely balanced with a slight edge towards pink.
  • Greenish Blue diamond - The ratio between them is about 75% Blue and 25% Green.
  • Yellowish brownish Orange - The ratio is about 60 -75% Orange and the rest of the diamond color is a mix of yellow and brown colors.

*All given parentage values are not accurate and are just given as an example