Given concerns over the possibility of further artefacts remaining within the ground by virtue of association with the disc, also potential treasure, re-excavation of the site took place in March 2003, with funding from the National Museums and Galleries of Wales.

Insufficient collagen survived to provide any sort of reliable date from the bone, whilst the three samples of charcoal recovered from the grave fill proved to be intrusive; one suggesting Mesolithic activity associated with the pre-burial land surface (OxA-12983: 8850 ± 40 [8210–7760 CalBC]), another a Late Roman date for the ground surface covering the edge of the grave (OxA-12955: 1675 ± 28 [320–430 Cal AD]), whilst the third consisted of a single piece of oak charcoal derived from the Early Medieval smelting horizon above (OxA-12956: 1264 ± 27 [670–840 Cal AD]).

The grave was located within a crescent of boulders and was oriented to look down the valley to the west—a poignant resting place for the person wearing one of Wales's first metal discs derived from native gold.

In Brittany, gold discs with similar dot and linear decoration have been discovered in Neolithic tombs and they also appear to be associated with early Beaker (Chalcolithic) abandonment deposits.

[5] The similarities in style and decorative technique between the Banc Ty'nddôl disc and 'basket earrings' or gold hair tress ornaments associated with rich Beaker burials is striking.

Examples from Kirkhaugh, Northumberland had been tooled similarly on the surface as a means of enhancing the repoussé lines applied to the back, a detail precisely matched on the Banc Ty'nddôl disc.