Freshwater pearls are created in freshwater waters - rivers and lakes. They are in a wide range of shapes, sizes and colors.
Freshwater pearls occur in rivers or lakes and most often they produce freshwater mussels (Margaritifera margaritifera). In one shell, it is common to find up to 20 pearls. Freshwater pearls producing molluscs inhabit not only a temperate zone in Europe but also North America, mainly the Mississippi River. Fresh pearl pearls are very solid, therefore they are relatively resistant to mechanical damages.
Size: 2.5 - 9.5 mm
Shape: freshwater pearls are not regularly round like pearls, we can encounter various shapes
Color: the color creates perlodge according to the environment in which it lives, so we can meet different colors - white, apricot, pink, gray, light and dark blue
Gloss: Freshwater pearls are not as beautiful as the pearls of the sea, but rather gently blurred
The Pearl Book - The Definitive Buying Guide. (2008). 4th ed. Woodstock: GemStone Press, pp. 38-62.
Gia.edu. (2016). Pearl Description. [Online] Available at: http://www.gia.edu/pearl-description [Accessed 10 Nov. 2016].