Along the same lines: what are (some of) the identifying characteristics of natural VS. non-nucleated cultured pearls? Is this a clear-cut, safe-bet ID already?
E.G:
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natural VS. cultured identification patterns on a Bahrain lab's site
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and more in GIA Insider 24-II-06
from such superficial presentations and few images, a couple of questions emerge: #1. nuclei are easy to find, thus not an ID problem, #2 some of the cultured and some of the natural pearls have no discernible internal structure at all, right?, #3 the cavities cited by the Hamburg lab as mark of cultured pearls appear in naturals according to GIA. Finally, #5. if identification really is not simple, do these guys share notes on ID (as it happened for Be treated sapphires, say, where labs publish and share research on identification) ?
I realize that what I have a hand is not good enough to ask questions. If comprehensive info is accessible, disregard questions - I'd be happy to take note.
Just curious
