Pearl Shape Is A Major Factor In Pearl Value The shape of the pearl is one of several factors which goes into determining its quality, and therefore also its value. In general, round and near-round pearls are the most valuable, because of their rarity.
Most freshwater pearl information notes their varied shapes, including potato-shaped and stick pearls, rice-shaped and button pearls, coin-shaped and drop pearls, off-round and round pearls. While a perfectly round freshwater pearl is extremely rare, Pearl Paradise deals with the roundest, highest quality freshwater pearls available.
Exotic black pearls from the Pinctada margaritifera or Black-lip pearl oyster, are more commonly known as Tahitian pearls. These pearls are often referred to as black, but have a remarkable color range that covers the spectrum - from light, creamy white and grey, to regal greens, iridescent peacock and deep black.