Color

Diamond color grades range from D-Z, D being absolutely colorless, E and F also graded as colorless and G, H, I and J near colorless. Stones graded K, L, and M will have obvious hints of color and as the scale approaches P you may find subtle changes in hue and tone.

The exceptions to the rule are "Fancy" diamonds- in well-highlighted colors that include pink, blue, red, green, and canary yellow. These are particularly rare and highly treasured.

To appreciate the quality of a colorless diamond, compare several stones side by side. Most of the diamonds between the colors D - J appear colorless and the only way to tell the difference between them is to lay them side by side on a white paper tray and by the lab certificate.