Natural pears are extremely rare nowadays due to pollution and over fishing. Nearly 95% of available pearls are cultured pearls only. Cultured pearls are natural products that are produced by taking the help of science to some extent. The mollusk is implanted with a nucleus for stimulating the production of nacre. Over a couple of years, the nacre layers are built and the pearl is formed. The nacre is the most important determinant in pearls because the luster of the pearls comes from the nacre. Mollusks create natural and cultured pearls in rivers, lakes and oceans. Cultured pearls are used for creating various types of pearl jewelry like necklace, ring, bangles, etc.
Imitation pearls are obtained by dipping plastic, glass or shell beads in ground fish scales. They are further lacquered to produce pearlescence. However, it would be very easy to differentiate between cultured pearls and imitation pearls. Cultured pearls possess an inner glow, while imitation pearls have only a surface shining. Further, if you rub the original pearl against your upper teeth, you would get a gritty feeling, which would not be there with the imitation pearl. These points should be...