Hello, I have a question for the pearl experts here about freshwater pearl nacre. One of the attractions of freshwater pearls is that generally they are meant to be solid nacre (except for the newer bead nucleated ones e.g. Edison's). I take this to mean that unlike say akoyas, which some people who wear them often enough will end up with the nacre wearing through in spots showing the bead, this won't happen with a freshwater strand. My question is though is the nacre still lovely and shiny all the way through, or is there an outer few layers of acceptable nacre and as it wears down the inner layers could be uneven, or chalky, or just not as lustrous?