What is the smallest size coin ring you have seen?

 Quite frankly the smallest size coin rings you generally see are those sized for a woman or a child. Many of those range from about a 2.5 to a 5 or 6.  It is possible to fabricate a US Quarter down to a 5 or 6, but if you need a size smaller than that, I generally recommend starting with a smaller coin - like a dime or a penny.

The other day I was wondering just how small I might be able to forge a coin ring, and still have it look fairly nice. I started with a US Dime (clad), and although I had to resort to using some special tools I do not generally use - I was able to produce a pretty nice coin ring that is "almost" a Size 0 (zero).  It actually turned out to be a Size 1/4.

You can see it and many of the other coin rings I make, at my website and in my store. Stop by and check out all of my coin rings and leave me a comment if you so desire.