The statistical regularities of the recovered valuable component content distribution is derived on the basis of the analysis of the survey and exploitation exploration, tentation, and mining of gold- and diamond-bearing alluvial deposits. The information on the real frequency distribution of the recovered gold- and diamond-bearing product is presented according to the prospecting and mining results. The probabilities of the daily valuable component production in dredge, underground, and open selective mining are analyzed. The reason for absence of any significant correlation coefficient between the recovered product content and the mineral deposit thickness is revealed.