Natural pearls:

Natural pearls are pearls that are formed in nature. The pearls is formed when a small object or irritant becomes embedded in the tissue of an oyster or mollusk. In a natural pearl this happens by chance when an irritant such as food, or a parasite lodges itself in the gonad, or mantle tissue of the oyster. The oyster in response secretes nacre (mother of pearl) around the object and the nacre builds up in layers it surrounds the irritant and forms a pearl.

Cultured pearls:

Cultured pearls are real pearls, but the difference is that we as humans will put the foreign object inside the oyster tissue after that the same natural process takes place as in a natural pearl. Kokichi Mikimoto a Japanese researcher made the most advances in the field of cultured pearls. With his technique cultured pearls could be designed to be round, and flawless from the beginning. When the oyster has an object put in side of it this is called nucleated, the oyster is then taken care of for 2-5 years on average this is know as pearl farming. A cultured pearl is not an imitation pearl they are real from nature with a little help from us.

Natural or cultured pearls come in many shape, colors, and sizes. They can be worn as necklaces, bracelets, earrings, and rings. They are a classic, and elegant jewelry staple that will never go out of style.