Working with chain is so much fun! The size of chain used for a project can be chosen by the desired finished look of a design, where the piece of jewelry is to be worn, and your good common sense, Dorothy. If we think about it, chain is made of metal, and metal is a strong material; however, the gauge and size of either individual links or the combination of links should play a large part in your choice.
Let's talk about some wire jewelry designs that utilize chain.
Earrings should be relatively lightweight, and when using chain to make them long, choose either small links or small gauge. You can add flash by using a larger, more ornate chain that is made in a small gauge.