On Thu, 19 Nov 2020 12:03:09 -0500, Erick wrote:

Appears to be two lead, multi-stranded hook up wire with 1.25mm diameter
PVC jacket. Short of stripping and measuring the wire itself, is there
any way to tell what gauge it is with the information provided? Thank
you.

You could get a rough idea of the diameter and stranding by measuring
the dimensions visible across the cut end.

...but the answer is no. Anything but an electrical/physical
measurement or labelled specification is guessing.

RL