According to diamond experts, all colored diamonds are rare stones, yet certain colors are more rare than others. For example, a pinkish purple diamond is considerable more rare than a purplish pink diamond, and a pure pink is rarer still.
Colored-diamond rarity is still best defined by comparing exact color descriptions:
but one can generalize rarity among the 12 color varieties
of diamonds in the following manner. (Also shown is the
colorless diamond.)
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