Earth’s mantle mineralogy of diamond and associated phases.- High-pressure experimental mineralogy of diamond genesis.- Physicochemical experimental study of diamond genesis under the Earth’s upper mantle conditions (within 150 – 250 km depth).- Physicochemical experimental study of ”super-deep” diamond genesis under the Earth’s lower mantle conditions (over 670 km depth).- Mantle-carbonatite conception of diamond and associated minerals origin.- Genetic role of partition coefficients for diamond-parental melts and associated minerals.- Fractional magmatic evolution of the Earth’s mantle material and diamond-parental melts.- Conclusion.