No carving, no inscription, no ornament of any kind marks its surface, which tapers from 0.42 metres at the western end down to just 0.12 metres at the eastern end, giving the whole 1.2-metre length a quietly wedge-like profile. A recumbent graveslab, meaning one laid flat over or beside a burial rather than set upright as a headstone, this one carries none of the knotwork or crosses that make early medieval Irish grave markers so recognisable. It simply lies there, anonymous.

The slab sits 1.5 metres east of a small kerbed enclosure that contains a cross-base, itself a remnant of some larger monument now gone, and 7.7 metres from the southern wall of the graveyard. What is quietly telling about this stone is its appearance in the published work of R. A. S. Macalister, the prolific scholar of early Christian and prehistoric Ireland whose survey of the Inis Cealtra graveyard appeared in 1916 and 1917. Macalister drew the slab onto his plan of the site but assigned it no number, a small editorial decision that has left it effectively nameless in the record ever since. Whether he considered it too plain to warrant closer attention, or simply ran out of numbering patience among the many monuments crowding the island, is not known. Inis Cealtra itself was a significant monastic site, and the Saints' graveyard represents one of its most concentrated layers of early medieval devotion, making the presence of even an undecorated slab within it historically meaningful, even if the individual beneath it remains entirely unknown.