George Frederick Kunz,
The Book of the Pearl
“ Peeling is employed to remove a protuberance or acid stain, to smooth a surface broken by abrasion, or to take off a dead spot produced by careless wearing of the pearls and allowing them to rub against one another. There are many instances where, by careful peeling, a perfect layer and skin have been brought to light, and where irregular or broken pearls, or those with a blemish, have been rendered much more valuable by a good peeler. ”
