According to GIA cultured Akoya pearls must display a combination of all the following characteristics: a round to near-round shape, white body color with or without overtone, excellent luster, clean to lightly spotted surface, excellent to very good matching, and sufficient nacre thickness and quality. When a pearl, strand or jewelry item meets the parameters for Hanadama, GIA will add a comment to the report. Many thanks to National Jeweler for sharing the information.
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