Welcome to the website of Gemmata nv.

Gemmata is a renowned Belgian diamond company, founded in 1982 by Jan Leemans. It is located in Antwerp, the heart of the diamond sector in Belgium. It is a much diversified company. World leader in industrial diamonds, it trades rough & polished diamonds as well. Futhermore, Gemmata owns the Casa Gi jewellery brand.

Gemmata is a Select Diamantair of Rio Tinto Diamonds. Gemmata is conscious of the strict requirement for trading and therefore only works with non conflict diamonds and suppliers who obtain their diamonds through ethical methods. 

Please note that this website is work in progress. The full website will be online soon!