Our entrenched tender division has more than 30 years of market expertise. We trade and polish rough diamonds by marketing local and international producers’ original run-of-mine production through a monthly tender process, selling and exporting diamonds locally and globally..
Coval’s business is the global trading of diamonds. Purchases are made from Central and Southern African mines in Angola, the Democratic Republic of Congo (DRC), Botswana and the Republic of South Africa (SA). Purchases are based on mine off-take agreements with associated medium-to large - scale producers. Productions are then exported to the Dubai office for further servicing. Coval organizes 10 auctions per annum where these diamonds are sold to institutional buyers.
Our polishing division based in Johannesburg, RSA, specialises in larger sizes and fancy shapes. We are AA-patented and the proud polishers for the Ashoka diamond - a trademarked shape for William Goldberg Diamond Corporation, New York. Our factory is known for its unsurpassed ability to achieve the best recovery and manufacture the best make, achieved through Galaxy services and water jet sawing.