Under its collaboration with Căpriana Monastery, The Centre for Research and Restoration-Conservation of the Cultural Heritage, within “Moldova” National Museum Complex of Iași, became part of an ample programme for the research, restoration and conservation of the valuable ecclesiastical heritage discovered in the crypt of Metropolitan Gavriil BănulescuBodoni at Căpriana Monastery. By means of several case studies (for the items Mitre, Paramandyas, Sakkos), the paper shows the results obtained by researching with noninvasive methods (X-ray fluorescence spectrometry (XRF), Fourier transform infrared spectrometry (FTIR), Raman spectrometry) the archaeological heritage discovered in the crypt of Metropolitan Gavriil BănulescuBodoni. The respect towards the integrity of the heritage items requires in situ scientific investigations that use non-destructive and non-invasive analytical methods. Scientific research using modern means is essential for a proper evolution of the conservation-restoration process. The aim of scientific investigations is to know the structure of the object, its state of conservation, to identify the nature of the composing materials, the corrosion products, the biological degradations. Each object coming from archaeological environment is subject to a process of scientific research and investigation, prior to the process of conservation-restoration. The advanced research technique, which can be applied also in the field of conservation-restoration of heritage items, provides nowadays the opportunity to thoroughly investigate these objects from the point of view of physical and chemical characteristics. As is the case with the medical field, the restorer requires a laboratory examination in order to identify the chemical composition of the various composing materials (metallic thread, sequins, buttons or other accessories), the nature and characteristics of dyes, the nature and characteristics of deposits, the nature and structural characteristics of threads and weavings so that a diagnosis of the state of conservation and of the appropriate conservation-restoration interventions can be made. Each object is unique, has a unique diagnostic, that has to be known in its specificity through scientific analytical and technical means. At the same time, a documentation is carried out for the object, from the historical, artistic, stylistic points of view. Based on these results, the restorer submits the conservation-restoration methodology to the restoration commission, indicating the stages, the materials and substances intended to be used in the conservation-restoration process of the object under study. Each conservation-restoration intervention has to follow a well-established, logical procedure. The first stage consists in the visual examination of the object. The next one includes thorough analyses by various techniques: spectroscopy (XRF, FTIR), Raman spectrometry, microscopic investigations (optical microscopy, scanning electron microscopy), including microbiological analyses. Generally, the methods of analysis used by physicists and chemists to investigate archaeological objects are noninvasive. Yet, there are cases in which the investigation specialist, due to various reasons, has to make a compromise in the case of the investigated object and choose minimally invasive methods. To this end, a sample of small size must be taken from the less visible areas of the object. The study highlighted the presence of several metallic threads, bands and sequins of noble metals - silver with high purity, exceeding 90%, gilded in most of the cases -, of metallic accessories made of silver and gilded silver, silver and gold alloy (the Cross, the Mitre); all the above mentioned emphasize the importance granted to the personality of Metropolitan Gavriil Bănulescu-Bodoni (1746-1821), buried at Căpriana Monastery.