Pearls have been used as a symbol of purity for a long time, but today, they are also used as fashion jewellery. To make your wardrobe more eclectic, you can try out some different styles of pearl jewellery sets. The exquisite look of pearl jewellery makes it a favourite treasure of women all over the world. Pearls are created by a series of growth processes in molluscs. It takes about two years for a pearl to make its way from the oyster's mouth to the surface of the shell. Then the pearl is harvested and evaluated.