I use charms all the time, and I’m sure you do as well. Today I’ve decided to share the formula I use to decide what size of jump ring to use for a charm. Certainly a smaller charm gets a smaller charm gets a smaller ring, but the specifics can be tricky to figure out. So, without further ado, the formula goes like this.
- If the size of the charm is less than or equal to 1 square centimeter use a 20 gauge 3mm ID jump ring.
- If the size of the charm is greater than 1 square centimeter use a 18 gauge 3.75mm ID jump ring.
Some things that can complicate the decision are
- If the charm has a very small hole use a 22 gauge 3mm ID jump ring
- If the charm is very long and skinny but still has an area less than 1 square centimeter it gets a 20 gauge 3mm ID jump ring
For anyone not familiar with the metric system, a square centimeter refers to a square with 4 sides that are each 1 centimeter long.