Dieter Quast and Alexandra Hilgner from the Römisch-Germanisches Zentralmuseum (RGZM) in Mainz explain the initial questions of the project “Weltweites Zellwerk – International Framework” regarding the origin and development of garnet cloisonné jewellery in the early middle ages. Garnet gemstones from India arrived in a vast amount during the 6th century in the Merovingian kingdom in central Europe. In the 7th century, the cloisonné jewellery style was suddenly disappearing. Was it because of a change in fashion or did something happen to the former trade routes? The International Framework project, organised by the RGZM, the SAI Heidelberg and the LVR-LandesMuseum, Bonn with partners in Sweden, the UK and Hungary tries not only to find answers to these questions regarding the value and the meaning of the gemstone garnet, but also to understand the international trade and economic interactions in the “dark ages”.