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Every month, a stone and a story. The month of April is represented by "the Diamond". Origin and composition of the diamond: The diamond was produced exclusively in India and the Borneo region from its discovery until the 16th century. Then, those from Brazil established themselves on the Western market until the end of the 19th century. We discovered South African deposits and since then the majority of diamonds have come from Africa. The purity of a diamond corresponds to an atomic structure characterized by...