Tabel comparativ a standardelor de culoare folosite de diferite laboratoare

GIA Status:actual AGS Status: actual AGS Status: istoric: înainte de 1995 CIBJO Status:actual IDC Status: actual Scan. D.N. Status:actual Old World Terms Status:istoric
Clasă și descriere clasă și scală colorimetru electronic clasă și scală colorimetru electronic clasă clasă și descriere clasă .50ct și peste clasă pentru sub .50ct seria 1 clasă seria 2 clasă
D Colorless 0 0–0.49 0 0–0.75 Exceptional white + Exceptional white + Colorless River White Finest White Jager
E 0.5 0.5–0.99 Exceptional white Exceptional white River
1 0.76–1.35
F 1.0 1.0–1.49 Rare white + Rare white + Colorless when viewed through the crown Top Wesselton Fine White
2 1.36–2.00
G Near Colorless 1.5 1.5–1.99 Rare white Rare white Top Wesselton
H 2.0 2.0–2.49 3 2.01–2.50 White White Wesselton White Wesselton
I 2.5 2.5–2.99 4 2.51–3.0 Slightly tinted white Slightly tinted white Slightly colored Top Crystal Slightly tinted white Commercial White Top Crystal
J 3.0 3.0–3.49 5 3.01–3.75 Crystal Top silver cape Crystal
K Faint Yellow 3.5 3.5–3.99 Tinted white Tinted white Top cape Tinted white Top cape
6 3.76–4.5 Silver cape
L 4.0 4.0–4.49
M 4.5 4.5–4.99 7 4.51–5.50 Tinted color 1 Tinted color Slightly colored to colored Cape Tinted color Light cape Cape
N Very Light Yellow 5.0 5.0–5.49 Tinted color 2 Low Cape
O 5.5 5.5–5.99 8 5.51–7.0 Light yellow Cape Very light yellow
P 6.0 6.0–6.49 Light yellow
Q 6.5 6.5–6.99
R 7.0 7.0–7.49 9 7.01–8.5
Dark cape
S Light Yellow 7.5 7.5–7.99 Tinted color 3 Yellow
T 8.0 8.0–8.49
U 8.5 8.5–8.99 10 8.51–10
V 9.0 9.0–9.49
W 9.5 9.5–9.99
X 10 10+ 10+
Y
Z