4C's

Clarity

Color

Carat-Weight

Cut

Color

Good color is no color.

Diamonds are found with a range of colors, from faint yellow or brown through the very rare pinks, blues, greens and other colors known as “fancies.” However, the best color for a diamond is no color. It is a totally colorless diamond that allows white light to pass effortlessly through it and be dispersed as rainbows of color. And to give a woman such a diamond is to show your
true colors, as well.

Color grading scale from totally colorless to light yellow. The differences between one grade
and another are very subtle, as can be seen by the number of grades within any one category.