A: Though I am not sure of the grade, as that information was not provided to us, they are of a medium grade I think. For the most part they are clean and in good condition, with an occasional bead that may not be as "polished" as the others. The color is a beautiful shade of purplish iridescence atop the silver pearl color. Karla
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Answer provided by: Karla Schafer (6/24/2014)