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This chapter operationalises a theory of value formation that suggests processes of valuation have two dimensions: evaluation and valorization. It argues that the value placed on a diamond after the practices of valuation have taken place has been altered by the very act itself – how the valuation has been done, by who and for what the purpose. The grading, pricing and trading of polished diamonds exist within a socialized sphere of interconnected relationships reinforced and impacted by power structures and institutional status at every point in the market. Using the diamond market case study, the chapter demonstrates how the institutions that structure the market are not static but dynamic, constantly challenged by the network of actors within the market. The resulting valuations and exchanges that are therefore both highly performative and hierarchical.
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