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The main market remains of course white
or colorless diamond which, in spite of its designation, is not
completely colorless.
Yes, it often presents a slight yellow
coloring more or less pronounced. Intensity of this color harms
light game reflected by the stone and so it influences its value.
It is this difficult appreciation, responsible of lots of confusions,
that decided Diamond world in order to establish and international
scale. Levels were fixed, corresponding to a very exact color of
diamond. American designation, with alphabet letters, is used most
of the time.
So that, diamond which color is G corresponds
to extra white. This appreciation is given by a professional (with
standard stones and special light). Diamonds of color D are scans,
and they are qualified as pure or nearly pure. According to their
weight, they reach very high prices.
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