Abstract
Relationship between structural impurities in diamonds and the diamond-bearing potential of the kimberlites is demonstrated on an example of representative statistical samples of diamonds from the pipes of Yakutia, Arkhangel’sk Region, South Africa, and Brazil. A positive correlation emerges of the diamond-bearing potential of the kimberlite pipes with the overall content of structural nitrogen in the diamonds and, correspondingly, a negative one, with the degree of its aggregation and with a ratio of the hydrogen and nitrogen concentrations in the crystals. 
 Genetic aspects are discussed of the revealed relationships, that include characteristics of the carbon sourсe of the diamonds and their crystallization conditions.
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