sentence: Pearls are small and often white but sometimes in pale colors or even black.
sentences_before: Pearls' are a kind of material made by mollusks, like oysters.
sentences_after: They are often round, but sometimes half-round, oval, or in different shapes. Pearls are often used for jewelry. The pearl is the birthstone for the month June.
concept_name: pearl
headings: Pearl
categories: Gemstones Birthstones