Most of the world's rough diamond trade flows through a few key international centers. These hubs host major diamond bourses and reputable merchants:

The trade of rough diamonds is strictly regulated to prevent the sale of "conflict diamonds."

Rough diamonds typically move from mines to the market through three primary channels:

: A critical hub for the industry, as approximately 80% of the world's diamonds are cut and polished here. Major markets like Mini Bazaar and Mahidharpura (Moti Bazaar) are central for both buying and selling rough stones.

: Prices vary wildly based on size and purity. For example, lab-grown rough diamonds might range from $1,200 to $10,000 per carat, while natural stones can cost significantly more depending on their clarity and potential. Rough Diamonds | Diamond Commodity Chain - U.OSU