Pearl Grading SystemPearl grading is very similar to the "4 C's" of diamond grading in that the pearl grading system takes into consideration several key categories of qualitative comparison analysis. The pearl grading system consists of five main categories: 1. Luster 2. Shape 3. Color 4. Surface 5. Size
The AAA-A Pearl Grading SystemThis system grades pearls on a scale from AAA to A, with AAA being the highest grade, this grading scale is common to freshwater and akoya pearls only, but is accepted by many South Sea and Tahitian pearl dealers. The AAA to A grades are as follows:
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