Pearls are some of the most beautiful gemstones in the world – though not technically a gemstone at all since they are created by living organisms. Pearls are made from calcium carbonate and are created by mollusks that secrete a protein to protect itself from an irritant that has found its way into the shell. Pearls are most commonly white; however, they come in an array of colors such as black, silver, pink and more. Gemstone Quality Pearls often have an iridescent quality and come in a multitude of sizes with large pearls usually being more expensive since they take
much longer to grow. Besides spherical shapes, pearls can
be teardrop, button and oval-shaped.

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