The results of a combined minero-petrographic and isotopic study carried out on representative marble sculptures from the Museum of Carthage are presented. Pentelikon source has been identified for nine of the analyzed items, Carrara and Prokonnesos sources have been also identified for three and one items respectively, confirming in some cases previously-made hypothesis. Local Chemtou and Djebel Ichkeul stones present very different petrographic fabrics compared with the most recurrent marbles. The undertaken approach adds value to the descriptions of the studied artifacts and could be extended to other art pieces of this and other museums.