COLOR
The most valuable color is no color or very intense color (i.e., fancy yellow). A totally colorless
diamond allows white light to pass effortlessly through it and be dispersed as lovely rainbows of
color. The grading of color is expressed with a letter, such as D, representing the best and
most transparent.


COLOR SCALE

Colorless (collection)
D,E,F

Near Colorless (white)
G,H,I,J

Faint Yellow (top silver)
J,K,L,M

Very Light Yellow
N,O,P,Q,R,

Light Yellow
S through Y

Fancy Yellow
Z


CLARITYSCALE

Flawless/Internally Flawless
F, IF
Free from internal blemishes under 10x magnification

Very, Very Slightly Included
V VS1, V VS2
Inclusions and/or external blemishes very difficult to locate under 10x magnification

Very Slightly Included
VS1, VS2
Inclusions and external blemishes difficult to locate under 10x magnification

Slightly Included
SI1, SI2
Inclusions and external blemishes easy to locate under 10x magnification

Imperfect
I1, I2 & I3
Inclusions and external blemishes visible to the naked eye.



INDEPENDANT GRADING LABS

AGS
American Gemological Society

GIA
Gemological Institute of America

EGL
European Gemmological Laboratories

IGI
International Gemological Institute