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When looking at a diamonds colour grade, we are referring to its lack of colour. In other words we are looking at the whiteness of the diamond, the less colour a diamond has, the higher its grade.
We choose to stock diamonds from D to I on the colour grading scale, as these stones are which meet our quality guidelines.
D (Absolutely Colourless)
This is the highest colour grade, the diamond presents absolutely no warmth or colour to it. This colour grade is considered very rare.
E-F (Colourless)
These diamonds are considered are and only a small amount of colour can be detected by a gemologist.
G-H (Near Colourless)
These diamonds appear white and colour is difficult to detect unless they are compared with diamonds of a better grade.
I-J (Near Colourless)
In these diamonds there is some warmth of colour tone detectable.
K-M (Noticeable Colour)
These diamonds have alot of colour and warmth detectable to the naked eye.
N-Z (Noticeable Colour)
Colour in these diamonds is obvious.
UK / Australia / South Africa |
US / Canada | France |
Germany / Russia / Ukraine / Asia |
Italy / Spain / Netherlands / Switzerland |
Japan / India / China / South America / Turkey / Israel |
H | 4 | 46.5 | 15 | 6.5 | 7 |
I | 4.5 | 47.75 | 15.25 | 7.75 | 8 |
J | 4.75 | 48.375 | 15.5 | 8.375 | - |
K | 5.25 | 49.625 | 16 | 9.625 | - |
L | 5.75 | 50.875 | - | 10.875 | 11 |
M | 6.25 | 52.125 | 16.75 | 12.125 | - |
N | 6.75 | 53.375 | - | 13.375 | - |
O | 7 | 54 | 17.25 | 14 | 14 |
P | 7.5 | 55.25 | 17.75 | 15.25 | 15 |
Q | 8 | 56.5 | - | 16.5 | 16 |
R | 8.5 | 57.75 | 18.5 | 17.75 | 17 |
S | 9 | 59 | 19 | 19 | 18 |
T | 9.75 | 60.875 | - | 20.875 | 19 |
U | 10.25 | 62.125 | 20 | 22.125 | - |
V | 10.75 | 63.375 | 20.5 | 23.375 | 21 |
W | 11.25 | 64.625 | - | 24.625 | - |
X | 11.75 | 65.875 | 21.25 | 25.875 | - |
Y | 12 | 66.5 | 21.5 | 26.5 | 25 |
Z | 12.5 | 67.75 | 21.75 | 27.75 | 26 |