When worn alone, necklaces and chains are typically positioned just below the collarbone, which comes across a length between 18 and 24 inches, depending on your height, neck size, and personal preference.
It is typically recommended to prefer a length where pendants hang comfortably from your chains though other than that; necklace length has no rules. If you like to layer your necklaces, then choosing the right size for each necklace becomes even more critical.
To determine the length of your necklace, you can download our Necklace Size Guide and follow the instructions.