Only the upper half of the original slab survives, roughly coffin-shaped and around thirteen centimetres thick, its surface carved with a foliate cross, meaning one whose arms terminate in or are decorated with leaf-like forms. Running parallel with the stem of that cross are the remnants of an inscription in Lombardic lettering, the rounded, decorative script common on medieval funerary monuments across Ireland and Britain. The first line reads HIC IACET, "here lies", the standard opening of a memorial inscription. Below that, the fragmentary word DEDAS follows, tentatively interpreted as a form of the Latin verb meaning "may you grant", suggesting the inscription may once have included a petition, perhaps a prayer for the soul of whoever lies beneath.

The slab was recorded by O'Mahony in 1987 and measures approximately 0.42 to 0.53 metres in width and 0.74 metres in height for the surviving portion. Medieval grave slabs of this type were commonly produced in Ireland from the twelfth century onwards, often marking the burial places of clergy, merchants, or local landholders. New Ross itself was a significant medieval port town, and its churches saw patronage from a range of prominent families and ecclesiastical communities. The person commemorated here remains entirely unknown; the stone gives only the opening of their memorial and a possible appeal to divine mercy, before breaking off into silence.