Learn About Freshwater Pearls - as part of the Wedding series by GeoBeats. Fresh water pearls are an excellent choice for fashion forward fashion conscious women. And one little secret about fresh water pearls is that they are the most affordable kinds of pearls. Their sizes have a wide variety of range of about 2mm to 20 mm. The prices that you are looking at are about 35 dollars for a pair of earrings to hundreds of dollars for a necklace. They also come in a wide variety of shapes as well and wide variety of colors. White, pink, lavender, chocolate, cranberry and black, chocolate being my personal favorite actually.