The Color of the diamond could range
from colorless to yellow :
To
the untrained eye, a diamond, which at first may appear
colorless, can in fact have traces of yellow and brown
colors in it. Colors, range from "D" grading
(as the most colorless) to "Z" grade (as the
closest to fancy yellow).
D E F
G H I J
K L M N
colorless
near-colorless
very light yellow
The closest to colorless a stone is, the more valuable
the diamond is.