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What are the requirements for the finish quality of freshwater pearls?

time:2021-11-19 source:sznbone Views:


The finish quality requirements of freshwater pearls:


Flawless: The surface of the pearl is smooth and delicate when observed with naked eyes, and it is extremely difficult to observe the surface flaws.


Slight flaws: There are very few flaws on the surface, like pinpoints, which are difficult to observe with the naked eye.


Small flaws: There are minor blemishes, which are easy to observe with the naked eye.


Flaws: The blemishes are obvious, occupying a quarter of the surface area.


Serious flaws: The flaws are obvious, and they occupy more than a quarter of the surface area.