Cult statue head, probably of Diana. The idealized, conservative style and the large scale suggest this head was part of a cult statue from one of Nemi's major temples. It was originally adorned with a diadem, probably of bronze.
Romano, Irene B. Classical Sculpture; Catalogue of the Cypriot, Greek and Roman Stone Sculpture in the University of Pennsylvania Museum of Archaeology and Anthropology. Philadelphia: University of Pennsylvania Museum of Archaeology and Anthropology, 2006. See: p. 85, no. 44
White, Donald J., Ann B. Brownlee, Irene B. Romano, and Jean M. Turfa. Guide to the Etruscan and Roman Worlds at the University of Pennsylvania Museum of Archaeology and Anthropology. Philadelphia: University of Pennsylvania Museum of Archaeology and Anthropology, 2002. See: p. 54, no. 80
Moltesen, Mette. Dianas Hellige Lund: Fund fra en Helligdom i Nemi: In the Sacred Grove of Diana: Finds from a sanctuary at Nemi. Ny Carlsberg Glyptotek, 1997. Page/Fig./Plate: 5-235
Guldager Bilde, Pia. "The Sanctuary of Diana Nemorensis: the Late Republican Acrolithic Cult Statues". 66. Acta Archaeologica, 1995. Page/Fig./Plate: 191-217