Integrating a multidisciplinary methodology, the technological approach developed in this publication provides new insights into Great Moravian and Bohemian elite jewellery dated from the 9th and 10th centuries AD. Based on an investigation of the main types of jewels (gombiky, earrings, metallic elements of necklaces including kaptorgy, beads, and chains), it sheds light on the complex construction of these jewels, on the different manufacturing processes, and on the decoration techniques involved in their fabrication.