Pearl jewelry featuring blister pearls offers something the classic round variety cannot: organic shapes with dramatic nacre surfaces. Blister pearls form attached to the inner shell of the mollusk rather than free-floating in tissue. This growth pattern creates dome-shaped gems with flat backs and broad iridescent faces. Our collection pairs these natural formations with .925 sterling silver settings that let the pearl's luster take center stage. Each piece ships free within the US from a store that has specialized in genuine stone jewelry since 2005.
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A blister pearl forms when a pearl sac develops against the inner shell of a mollusk rather than in the soft tissue. The pearl grows attached to the shell, creating a dome shape with a flat back that must be cut away from the shell for use in jewelry.
Blister pearl value depends on nacre thickness, luster, and color. High-quality specimens with thick nacre layers and strong iridescence can command prices comparable to cultured pearls, though they remain more affordable than round saltwater pearls of similar size.
Clean blister pearls with a soft damp cloth and store them separate from harder gemstones. Avoid contact with perfume, hairspray, and household chemicals. Their 2.5-4.5 Mohs hardness makes them prone to scratching from abrasive materials.