To develop an effective strategy for the development of Russia's ABK in a crisis, new methods and models are needed to predict the further development of the global diamond business. The global financial crisis affected the condition of the diamond pipeline in 2008, but 2009 will be even more indicative. It is likely that the relationship between the main parts of the diamond pipeline can drastically change.

To determine their values, the three main components of the global diamond pipeline - the sale of diamonds, diamonds and diamond jewelry in 2001-2008 - were analyzed using a three-component diagram that is commonly used in physical chemistry and metallurgy in the study of multiphase systems (Figure 1) . Analysis of the chart shows the growth in the share of the diamond mining industry up to 2005, with an almost constant share of the lapidary industry (falling out of the point in 2005 means a crisis in the diamond-border segment). Further, the share of the diamond jewelry sales segment is growing. Undoubtedly, the economic crisis will lead to a decrease in diamond sales.

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