It measures just over half a metre in length and not much more than a third of a metre wide, roughly the dimensions of a large book left face-down in the grass. What makes it worth crouching over is what has been worked into its upper surface: a circle drawn in two incised lines, and within that circle, an equal-armed cross cut cleanly into the stone.

The decoration is a form found on early medieval grave slabs and architectural fragments across Ireland, where a ringed or framed cross served both as a marker of Christian identity and, in funerary contexts, as a claim on sacred ground. The equal-armed cross, as distinct from the Latin cross with its elongated lower arm, carries associations with some of the earliest Christian stonework on the island. At Lorrha, a place with deep monastic roots reaching back to the sixth century, the presence of such a stone at the priory site layers one phase of religious history quietly over another. The Augustinian priory itself was a medieval foundation, and the slab sits at its eastern end, a position that would typically correspond with the chancel or altar end of a conventional church layout.