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Originally Posted by hongqing Normally my farm gets the natural pearls or keshi pearls when harvesting the cultured pearls. The small-size-round-shape pearls without nuclei or mantle tissue are selected as natural pearls. Quote: |
Originally Posted by GemGeek They don't meet the internationally recognized criteria for natural pearls because they are a byproduct of culturing... | |
Interesting... I know CIBJO's definition too... but their 'rules' are just guidelines, not mandatory.
Isn't there some debate still going on about this subject?
Can these roundish keshi [i] w/o traces of mantle tissue (an certainly w/o nuclei) even be identified as different from non-cultured? I used to think that it was
only those traces of mantle that allowed a positive ID test.