In addition to center drilled pearls in a range of colors you've come to expect from us, we also carry half-drilled matched pairs. Imagine giving the gift of custom pearl earings that you made yourself! Pearls Natural freshwater pearls come from freshwater mussels, usually farmed in various Asian countries. Typically, a peachy-pink is natural, while all other colors are enhanced for further beauty. Other colors, when natural, are the most expensive.