Set flush with the surrounding floor, it is easily mistaken for an ordinary paving stone, yet its surface carries carefully worked raised relief carving that has survived, albeit worn, for the best part of five centuries. The slab measures 1.72 metres in length and 0.74 metres in width, and while it is largely intact, the uppermost portion of its border has been broken away horizontally, and several cracks run across its lower half. What remains is a seven-armed segmented cross-head with fleur-de-lys terminals, a circular knop beneath the head, and a cross-shaft seated on a curving base, flanked on either side by a vertical band. The fleur-de-lys terminal, a stylised lily motif common in late medieval ecclesiastical stonework, gives the composition a quality that sits somewhere between the decorative and the devotional.

Along what survives of the border, a Latin inscription runs in raised Black Letter script, beginning on the upper left side of the slab. Black Letter, the angular Gothic script widely used across medieval Europe for formal texts, was still the standard choice for monumental inscriptions in Ireland in the early sixteenth century. The text was transcribed by the historian William Carrigan in 1905, who read it as 'Hic jacet Johes My….tt et fili ei Dns Johes Mylott', translating it as 'Here lie John Mylott and his son, Mr. John Mylott'. The middle portion of the family name is damaged and unclear, but Carrigan was confident enough in the reading to date the slab to around 1525. He also noted that the abbreviation 'Dns', placed before the younger John Mylott's name, is likely a rendering of 'Dominus', a title that in this context frequently indicated a member of the clergy. If that reading is correct, father and son shared not only a name but perhaps a professional proximity to the very church in whose chancel they were interred.