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Pearl-growing oysters live or grow in rivers and lakes as well as the sea. Thus, pearls can be freshwater or saltwater. In general, saltwater pearls are much higher in quality than freshwater. The average saltwater pearl is near-round, white or off-light in color, and has a moderate luster and glossy surface. Freshwater pearls are more irregularly shaped - they are usually flat or pear-shaped. They have less glossy, and they come in a wider variety of colors, such as pink, purple, and green.
Freshwater pearls have thicker nacre than saltwater pearls. In appearance Freshwater pearls are noted for a softer luster, a glow that comes from deep within the pearl. Pearl-growing oysters live or grow in rivers and lakes as well as the sea. Thus, pearls can be freshwater or saltwater. In general, saltwater pearls are much higher in quality than freshwater. The average saltwater pearl is near-round, white or off-light in color, and has a moderate luster and glossy surface. Freshwater pearls are more irregularly shaped - they are usually flat or pear-shaped. They have less glossy, and they come in a wider variety of colors, such as pink, purple, and green.
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