- The second most important of the 4Cs is color because it’s what the eye notices next after sparkle.
- A diamond's color actually refers to its lack of color. The less color, the higher the color grade.
- To avoid a pale yellow color, choose a diamond grade H or higher.
- Blue Nile offers only Colorless (grades D-F) to Near-Colorless (grades G-J) diamonds to assure that any natural color present is typically undetectable to the naked eye.