| Grading, or colour, refers to the degree to which a diamond is colourless.
Diamonds range in colour from icy winter whites to warm summer whites. Diamonds are graded on a colour scale which ranges from D (colourless) to Z.
Warmer coloured diamonds (K-Z) ‘glow’ when set in yellow gold. Icy whites (D-J) look stunning set in white gold or platinum. Colour differences are very subtle and it is very difficult to see the difference between, say, an E and an F. Therefore, colours are graded under controlled lighting conditions and are compared to a master set for accuracy.
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