Colour - the CIBJO colour scale

These tables are part of the CIBJO rules and are based on
the master stones officially recognised on 27th April 1978.
For comparison the G.I.A. terms are also shown

Under 0.47ct 0.47ct and over G.I.A
Exceptional
White Exceptional White +
Exceptional White D
E
Rare White
Rare White +
Rare White F
G
White White H
Slightly Tinted White Slightly Tinted White I
Slightly Tinted White J I
J
Tinted White Tinted White K
Tinted White L K
L
Tinted Colour Tinted Colour M
Z
Fancy Diamond Fancy Diamond Fancy