Middlemen play a vital role in the "secondary market." These traders buy rough parcels from smaller mines or at auctions and break them down into smaller, more specific lots. They then sell these tailored packages to smaller manufacturers who may only need specific sizes or qualities of stones. 4. Industrial Buyers
The journey of a rough diamond from the earth to a ring finger involves a specialized group of buyers. These players operate in a high-stakes market where value is determined by potential rather than immediate sparkle. 1. Large-Scale Sightholders who buys rough diamonds
A small, elite group of luxury brands—such as Tiffany & Co., Graff, and Harry Winston—occasionally buy exceptional, "special" category rough stones. By purchasing a massive rough diamond directly, these houses can oversee the entire provenance and cutting process to ensure the final gem meets their specific brand standards for "perfection." 6. Specialized Investors Middlemen play a vital role in the "secondary market