At Blue Nile, you'll find color grades that range from K (faintly colored) to D (colorless). Lower color grades exist, but L–Z color grade diamonds aren't available at Blue Nile.
Are D color diamonds rare?
Diamonds with a D color grade are absolutely colorless and the rarest of all color grades.
Does color grade affect the diamond price?
Color, cut, clarity, and carat—the 4Cs—all affect a diamond's price. A D-color diamond will cost much more than a K-color diamond. When working within a budget, try prioritizing cut over color to maximize brilliance.
Is color more visible in large diamonds?
The larger the diamond, the easier you'll notice the color. For this reason, we recommend shopping for an H color grade or higher if your diamond is one carat or larger.