When talking of pearls most people think of oysters. Of course, any shelled mollusk can produce natural pearls, but they are not common, at least not in clams. Nevertheless, diners occasionally discover pearls in Pamlico Sound clams. These five pearls were found over several decades by one islander:
I did not measure the pearls when I took the photo, but I am guessing the largest one was close to one centimeter in diameter.
This month's Ocracoke Newsletter is a brief history of Howard's Pub. You can read it here: https://www.villagecraftsmen.com/news082117.htm.