D
Absolutely colorless. The highest color grade. Extremely rare
E-F
Colorless. Minute traces of color can be detected by an expert gemologist. Considered a rare diamond.
G-H
Near-colorless. color difficult to detect unless compared side-by-side against diamonds of better grades. An excellent value.
I - J
Near-colorless. An exceptional value with slightly detectable warmth or tone.
K-M
Noticeable color.Not carried by Jos Alukkas
N-Z
Noticeable color. Not carried by Jos Alukkas.