Perlas: If the pearl is 600 years old, then it is cultured and the Lao Tzu story is true. Clams don't live 600 years. By the same token, clams don't live 200 years either so the story of storing the pearl in the clam that was lost for approx., 200 years doesn't check out either.
I believe carbon dating is a faulty science and we'd need a whole 'nuther forum for that debate, so don't start me.
Salem: Yes, many families keep very detailed lineage records. Not mine, mind you, but that doesn't shock me.
Raisondetre: Actually, the Lee family isn't trying to get "a piece" of the pearl. They are merely providing it's history as a national treasure.
Salem: "Mainly, I trust Wikipedia about as much as I trust ermm.." LOL Stop making me laugh!
I still think it would be very easy to determine if it is natural or cultured. And why don't they claim it to be natural? Do they know something they aren't telling?
But more importantly, why did I even pose the question! Grrrr, what's that saying ... "inquisitive minds want to know?"