Diamond Colour

There are many differing scales used by different organisations for colour, but the most common one is an alphabetic scale starting at the colour D. This is the whitest colour exhibited by diamond. A typical commercial colour seen in jewellery shops in the UK is probably around J to K which is still very pleasing when set in a ring.

Colour:	Description:
D	Pure White - the most prized colour
E	Exceptional white - colourless group
F	Excellent white - colourless group
G	Good white - colourless group
H	White - colourless group
I	Slightly tinted white/ white when viewed from top
J	Slightly tinted white/ commercial white
K	Tinted white/ still acceptable white when mounted
L	Tinted white/ needs yellow setting to look its best
M	Slightly yellowish/Tinted colour-champagne
N	Slightly yellowish/Tinted colour-champagne
O-R	Yellowish/Tinted colour
S-Z	Yellow/Tinted colour

Comparison of terms

GIA	CIBJO	Old Terms
D	Exceptional White	River (R)
E
F	Rare White	Top Wesselton (TW)
G
	White	Wesselton (W)
H
I	Slightly Tinted White	Top Crystal (TCR)
J
K	Tinted White	Crystal (CR)
L		Top Cape (TCA)
M	Yellowish	Cape (CA)
N		Light Yellow


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