The Rapaport Report (Feb 1, 2002) downgrades the cut-quality from "A" to "B" for diamonds with "surface graining." The price reduction is about 10%.
The GIA seems less negative on "graining" for either clarity or cut (their Diamond course).
Is graining really bad?
The GIA seems less negative on "graining" for either clarity or cut (their Diamond course).
Is graining really bad?
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