Why Tahitian pearls are black?
Mia Horton
Updated on June 08, 2026
Black pearls are formed when that piece of sand gets stuck in the body of a very specific type of oyster, the Tahitian black-lipped Pinctada margaritifera. The interior shell, called the nacre, of most oysters is usually a glossy white or silver but the Tahitian black-lipped oyster features a thick band of black.
Are Tahitian pearls naturally black?
Unlike the more common pearl types, Tahitian pearls typically have a naturally dark body color. These pearls have become some of the most sought-after, expensive pearls in the world.How do Tahitian pearls get their color?
Where Do Pearls Really Get Their Colors From? In many cases, the color of a pearl is influenced the color of the lip of the oyster, which is the outer portion of its shell. Cultured Tahitian pearls, for example, inherit their grey hues from cultured Tahitian black-lipped oysters, also known as Pinctada margaritifera.What color Tahitian pearl is most valuable?
Prized Colors of Tahitian PearlsWith such a variety of colors displayed by the Tahitian pearls, there are some which are highly prized. Those with iridescent peacock and cobalt blue colors have the most value on the market.