: The most common method, accounting for roughly 65% of sales. Large producers like De Beers sell to a pre-approved list of "sightholders" who purchase large "sights" or allocations of stones.
: Producers often auction high-value or specific lots to the highest bidders, allowing smaller dealers to participate.
Where to Buy Rough Diamonds: A Guide to the Uncut Market Buying rough diamonds—diamonds in their natural, unpolished state—requires navigating a specialized market governed by strict international regulations. Whether you are a jewelry designer, an investor, or a collector, understanding where and how to source these stones is essential for ensuring authenticity and ethical sourcing. Primary Global Trading Hubs where to buy rough diamonds
: It is highly recommended to obtain a report from a Gemological laboratory to judge the potential quality of the stone.
: Always ask for KPCS papers and check for authenticity and origin before completing a transaction. : The most common method, accounting for roughly
Rough diamonds typically move from mines to the market through three primary channels:
The trade of rough diamonds is strictly regulated to prevent the sale of "conflict diamonds." Where to Buy Rough Diamonds: A Guide to
: Buying directly from mines in rural areas is often discouraged for individuals due to extremely high overhead costs and complex legal hurdles compared to buying from established traders or sightholders. Pricing and Valuation