There are many types of pearls that hold various degrees of value. They are mainly determined by the species of the host mollusk. Found in various bodies of water all over the world, these pearls come in various sizes and colors.South Sea Pearls Beginning with our star, or rather our sun, the South Sea Pearl is found within the Pinctada Maxima Oyster. Besides the Philippines, they are also produced in Australia, Indonesia, and Myanmar. Their colors range from white, silver, and most popularly, gold. These gems grow up to 15-16 millimeters in diameter, making them supremely valuable.Akoya PearlsWhen you hear the word “pearl,” chances are the first image that comes to your mind is the Akoya Pearl. It is the classic white or cream pearl familiar to many, whether you are a gem enthusiast or not. Hosted by the Pinctada Fucata oyster, these pearls are mainly produced in China and Japan, and can grow up to 9-10mm in diameter.Tahitian Pearls You can easily identify these pearls based on the shade of their color. Also known as the black pearl, these saltwater pearls are mainly cultured in Tahiti, where the name is derived from. They are found inside Pinctada Margaritifera oysters, and often come in dark colors such as gray black and brown with blue, green, purple, or pink overtones.Freshwater Cultured PearlsThese pearls are the most commonly produced among all the types, making them more affordable. As the name suggests, they are cultured in fresh water sources such as ponds and lakes. They also come in various sizes, shapes and colors, and are mainly produced in China.