Carved from mica schist, a silvery, flecked metamorphic rock common to the Wicklow uplands, it measures just over a metre in height and barely seven centimetres thick, giving it a almost wafer-like quality in the hand of the landscape.

Patrick Healy, who documented the cross in a 1972 Office of Public Works survey of ancient monuments at Glendalough, recorded its dimensions precisely: 1.03 metres by 0.5 metres. The arms expand slightly outward as they reach their ends, a form sometimes associated with early medieval Irish stonework, and round hollows have been cut into each of the four angles where the arms meet the shaft. On both faces, a single incised line traces the full outline of the cross, functioning almost like a border or frame drawn in stone. The head of the cross is damaged, so the full original effect of that upper portion can only be guessed at. Sevenchurches is the older name for the Glendalough monastic complex, referring to the cluster of early Christian buildings gathered across the valley floor and lower slopes, and this cross belongs to that same long continuum of modest, functional sacred objects that the site produced across several centuries.