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The word "pearl" is believed to originate from the Latin word pilula, meaning "small ball" or "sphere." In ancient times, pearls were also known as Margarite, a term derived from the Greek word Margaritifera, referring to pearl-bearing mollusks.

Pearls are natural organic gemstones that have been admired and treasured throughout history. They are formed when a pearl oyster becomes irritated by a foreign substance, such as a grain of sand, a tiny stone, or other particles that enter its shell. To protect itself from this irritation, the oyster secretes layers of calcium carbonate around the intruder.

These layers, known as nacre or mother-of-pearl, gradually build up over time to form a pearl. Nacre is responsible for the pearl's beautiful luster and iridescence. Generally, the thicker the nacre layers, the more valuable and attractive the pearl becomes.

Pearls can be classified into three main categories:

• Natural Pearls – Formed entirely by nature without human intervention.
• Cultured Pearls – Produced with human assistance by introducing a nucleus or tissue into the oyster.
• Imitation Pearls – Man-made pearls designed to resemble natural or cultured pearls but without the same composition or structure.