Determining the place and time of an artefact’s origination starts with archaeometry surveys. The aim of the study of the Holy Crown is to characterise in detail the parts of the crown – the frame, the filigree and the sockets, i.e. the metal parts – and the decorations (enamel, gemstones, beads), to determine the exact composition of the materials and to discover the place of origin. Archaeometry also includes the reconstruction of the technical and technological processes associated with artefacts. The absolute age of the artefacts can be determined using organic materials such as adhesives. This is basically a natural science. If we include the auxiliary sciences - photo-optical data recording, 3D modelling, which allows us to continue the study on the computer – it is possible to determine the relative date and place of the crown parts, using parallels with applied art, palaeography, etc. To date, no systematic archaeometry study has been carried out on the Holy Crown. There have been photographs, geometric measurements, visual inspections and descriptions by jewellers and engineers. If we want to write a scientific summary, we have a lot to draw on. The present article is such a summary, in which we attempt to reconstruct the technology of the Holy Crown, with the aim of pointing out the need for a complete archaeometry study.