| Definition: Pinctada
Martensii a cultured saltwater pearl that comes
primarily from Japan and China. Size ranges from 2mm to
10mm, and comprises most of the necklaces found in retail
stores.
Grading and Evaluating factors: Overtone color, Body color, Shape, Lustre, Nacre Thickness, Blemishes, Matching, millimeter (mm) size and length. |
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