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Diamons are submitted to an analysis of colour, this analysis is done by the comparison of them with stones called Master Color. (eventuale correzione Master Diamond).
Master Color stones are acepted and recognised all over the world.
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Most Diamonds on sale seem colourless, others can have tones of yellow or brown, these gems are called Champagne Diamons. |
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Only rare gems can have different colours: green, blue and pink, in this case they are not estimate by the scale of colours, but they are called
"Fancies".
STAIR OF THE COLOURS
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