The pearl is available in various colors that are blue, yellow, green, and purple, black, pink, white etc. this stone is popularly available in China Sea and the Persian Gulf. The world gemstone is produced when oysters cover of a foreign object with a layer of nacre. It takes approximately 5 to 8 years for a pearl to attend a good size. And takes approximately the entire life of an oyster. 

These pearls are available into a type that is natural pearls and artificial pearls. The natural pearls are found inside wild oysters and are very difficult to find nowadays. And the other type of pearls are cultured pearls the sperms are produced artificially by placing the shell beads inside an oyster then this oyster is left in the water and after a stipulated period of time, the oyster covers the beads with nacre. 

The natural faults are available exclusively in China Sea and the Persian Gulf. And the cultivated falls are available in Australia, Japan, and Korea. The natural pearls are much more expensive and rare than the cultivated one. Pearls are available in various shapes and colors such as semi-round, oval, round ring, pear etc. The perfectly round pearls are the expensive and rarest ones. The faults are the rare and the living substance and they should be treated carefully.