Gold-filled chain ring
1 - Tune the stopper to the chain using an open ring.
2 - Pass the other end of the chain through the stopper hole.
3 - Adjust the size of the ring on your finger. On the ring of the photo, we left 1cm of chain between the stopper and the pearl.
4 - Add a pearl by making a pig knot with a flat head rod.
Here is a bracelet made with a stopper 2 balls, which you can reproduce very easily at home.