It is relatively modest in scale, less than a metre tall, just over thirty centimetres wide, and barely more than ten centimetres thick. What lifts it out of the ordinary is the cross incised into its upper portion, a simple, clean form cut into the stone rather than raised from it, measuring roughly twenty by seventeen centimetres. The top of the pillar is flat, chamfered toward the rear, a small detail that suggests a degree of deliberate craftsmanship rather than rough utility.

The church at Clonamery itself dates to the tenth or eleventh century, placing it within a period of considerable activity in Irish monasticism, when communities across the country were shaping stone in ways that ranged from the monumental to the quietly functional. Cross-inscribed pillars of this kind occupy an interesting middle ground: they are not the elaborate high crosses that draw most attention, but nor are they unmarked boundary stones. They carry religious meaning through the simplest possible mark, a cross, worked into durable granite. What makes Clonamery particularly notable is that this pillar is not alone. Two further cross-inscribed pillars survive in the same church, suggesting that whatever community used this site placed some collective importance on these modest carved stones, whether as grave markers, devotional objects, or indicators of sacred space. The three together give the site a concentration of this type of early medieval carving that is uncommon.