A DTC Sightholder examines his box during a Sight in London

Rough diamonds are unique, and our approach - to ensure fairness, maintain the highest ethical standards and protect the enduring value of this natural treasure – is derived from more than a century of experience. De Beers is the world's rough diamond distribution leader.


    Diamond Trading Company

    The Diamond Trading Company (DTC) is the rough diamond distribution arm of De Beers, and is the world's largest supplier of rough diamonds, by value.

  • Bene LIST


    Beneficiation is embedded in the DTC business model. This means that we have a fundamental commitment to working with our partners to ensure the growth of business activities catalysed by the diamond industry which add value to the economies of diamond producing countries.

  • Diamdel LIST

    Auction Sales

    De Beers Auction Sales is the world leader in the online auctioning of rough diamonds. We actually pioneered the approach in 2008 when we broke with 44 years of traditional, direct sales to hold the industry's first online, international auction sale.