Black pearl is a rare and precious gem, which is formed under natural conditions. After years of baptism, nacre secreted by shells gradually formed. Thailand is famous for its rich marine resources and pearl culture technology, and the black pearls produced are highly sought after in the jewelry market. Black pearls are regarded as luxurious and precious jewelry materials, and are often used to make necklaces, earrings, rings and other high-end jewelry, showing unique charm and exquisite craftsmanship.