Jul 09, 2026

Ajax and GASSAN Diamonds have entered into a multi-year partnership that will run until at least 2030. As part of the agreement, the Amsterdam-based diamond company will become the club's Official Celebration Partner.
The partnership brings together two iconic Amsterdam brands that are internationally recognized for their rich heritage, ambition, and commitment to quality. For decades, GASSAN has been a renowned name in the world of diamonds, jewelry, and fine watches, with celebrating life's special moments at the heart of its business.
Cas Biesta, Chief Commercial Officer of Ajax, said: "Ajax aims to collaborate with strong brands that reflect both our international ambitions and our Amsterdam roots. GASSAN is exactly that kind of brand. The company is globally recognized for its craftsmanship, entrepreneurial spirit, and long-standing heritage in our city. We are proud to embark on this partnership together and look forward to creating unique experiences that bring our supporters, players, business relations, and partners even closer together."
David Bijlsma, Chief Commercial Officer of GASSAN Diamonds, added: "This partnership marks a special milestone for GASSAN. We have been actively involved in Dutch sports for many years and have always aspired to work with Ajax. Seeing that ambition become a reality makes us incredibly proud."
"Our shared love for Amsterdam, our international outlook, and our pursuit of excellence make this a natural fit. We look forward to celebrating many memorable moments together. While Ajax has united generations of supporters through unforgettable achievements and iconic players, GASSAN is known for creating lasting memories around life's most special occasions."