Diamond Color Actually means the lack of color.
It is the second most important factor to consider when choosing a diamond. The natural color of the diamond is measured by a grading system which is globally adopted by an alphabetical color scale from D to Z, the highest grade being D, which is the most expensive in value. As the scale goes down, the diamond starts to develop a yellow or brown or grey tint, therefore the less color diamond display, the higher the rarity and price.
It is advisable to choose a diamond grade G H or higher to avoid hue or pale yellow tint.