Mystery object

This queer looking find was unearthed by Lloyd Ker. I was told that it weighed 10 grams and measured 100mm, presumably at its widest point.

It is roughly heart-shaped, it has three large holes in it and what might be a loop on the tope edge. Mr Ker said: “What is it and how much is it worth?”

Detectorists dig up all manner of things, some of which have never been seen nor heard of until they surface. I’ve no idea what this find may be but one or more readers might be able to say it is obviously a so and so. If you have any plausible suggestions then do let me know.