It measures less than half a metre in length and barely a third of a metre wide, yet its carved surface carries a design of some care: a seven-armed cross in relief, its arms encircled by a ring, and at the very centre an inner circle containing a six-petalled flower. The edges of the slab appear to be broken, which means the terminals of the cross arms are gone, and what survives is a fragment of something that was once larger and more complete.

The cathedral itself stands on the site of a medieval church, and the graveyard surrounding it has accumulated centuries of burial and memorial. Graveslabs of this type, flat carved stones laid over or near a grave, were a common form of medieval commemoration across Ireland, often bearing crosses with decorative motifs drawn from Romanesque and later Gothic traditions. The combination of a ringed cross with a floral device at its centre places this piece within a long tradition of funerary carving, though the breakage makes it difficult to say precisely how the original composition resolved at its outer edges. Whether the slab once bore an inscription or any figural carving beyond the cross is now impossible to know. What remains sits quietly in the gravel on the south side of the building, neither displayed nor explained, simply present.