come naturally in almost every color of the rainbow. But,
most people are concerned with diamonds in the white range.
Colorless diamonds are more valuable, because they are rarer
and it is the lack of color, or whiteness in a diamond that
allows the light to pass effortlessly through the stone and
disperse that beauty back to the observer. The color grading
scale established by the G.I.A. (Gemological Institute of America)
varies from D (totally colorless) to Z (light yellow).
D through F are virtually colorless. G, H and I diamonds
appear colorless when mounted. J, K and L diamonds look
very nearly colorless, but you can see some color in larger
stones. Beyond M, most people can see color pretty
easily. The color of the metal in a mounting can either
mask or enhance the diamond color. Yellow gold makes slightly
yellow or brown diamonds appear more colorless. White
mounting (gold or platinum) makes the color more perceptible.