Only about one in 10,000 wild oysters produce a pearl. According to research institute Texas Sea Grant , Pearls are formed when an irritant, like a grain of sand, enters the oyster shell. The ...

She said she’ll be getting an appraisal done soon to see what the pearl is worth. Pearls are made when a grain of sand or some other particle gets into an oyster shell. The oyster then coats it ...