Pearl

Pearls are the product of oysters or other mollusks. Pearls are layers of tchazar (aragonite) formed around a bit of grit or other irritant over the span of a few years. The resulting stone has a rich, deep luster. Most pearls are white in the Realms, though there are rare (and more valuable) versions which come in different colors (rainbow and black are the most valuable). Pearls of exceptional size (three inches or eight centimeters) or more are usually marred or otherwise less valuable, though in one extreme case a huge pearl was enchanted and turned into a crystal ball. A typical specimen has a base value of 500gp.