Chain length comes down to where you want the piece to sit. A pendant adds a little drop below these.
- 14" — sits snug as a choker, at the base of the neck
- 16" — right at the collarbone
- 18" — just below the collarbone
- 20" — a couple inches lower, top of the chest
- 22–24" — mid-chest, nice over a shirt
- 30"+ — long, falls below the sternum
To check: cut a string to length, hold it at your neck in the mirror, and see where it lands — or measure a necklace you already wear.