Mabe Pearls, also known as button or blister pearls, are half-spherical cultured pearls. They look like half of a full round pearl and tend to be flat on one side with a wide middle and a half sphere shaped top. Mabe pearls are grown on the inside shell of the oyster rather than in an oyster's tissue, which creating a semi-spherical pearl with a relatively flat back.

Button pearls are often used in single pendants or earrings where the back half of the pearl is covered, making it look like a larger, round pearl. It can also be used to make necklaces with fun designs, or pendants.