Last year, the must-have accessory of the summer was the seashell. We were bombarded with seashell anklets, drop earrings, rope-tied necklaces and stacks of bracelets. But, as we well know, only some trends remain in style. The seashell trend has already evolved into its next form, the summer pearl. The pretty gemstone always stands up to the test of time and has long-since proven that it is not reserved for your grandmother. A pearl’s timeless allure, its natural shape and the variety of colours to choose from, makes pearl pieces a smart investment. The trick is to wear the classic gem in a street-cool way. Granny’s go-to accessory has the fashion stamp of approval …