Hi,
We stock 10mm jump rings in white, but they are about 16 gauge (.050"), so thicker than the 20-21 gauge (about .030") that you need.
They are ย/half pound (about 720 pieces), or 30.00/lb (about 1440 pieces).
I am sure we can get them in a finer gauge, and we can certainly have them silver plated instead of white plated.
The silver plate is often about 40% more expensive than the white plate.
A pound is generally the minimum order, and since you need a finer gauge, there will more per pound than the 10mm ones we have in stock.
So just at a guess, there will be about 2,000 pieces per pound, and it would be about โ.
Please let us know if you want to go for a special order like this, and I can get you more precise information.
Another option would the "jump ringer" tool. We don't stock it, but I bet Google would let you know who does!
I've seen it advertisted in both Wire Artist and Lapidary Journal.
If you commonly need specialized jump ring sizes, but not whole pounds of them, the "jump ringer" tool would be the way to go. You would just need to buy the proper wire size, and make your own whenever you need them!