Pearl rings
Pearl
— pearls of natural origin are produced by certain types of mollusks: a grain of sand or a small stone that gets into the shell is coated with layers of nacre, growing in size to become a pearl. In the modern world, pearls are produced industrially and are relatively inexpensive, which is why they are found even in relatively inexpensive jewelry. Additionally, artificial pearls are produced—some varieties of which are indistinguishable from natural material.The color of pearls can be almost any, but the most popular are white and pinkish shades, with a characteristic pearlescent sheen.
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