These are my typical chain lengths. 

These will fall differently given the size of the person's neck, this is on an average size woman.  Also, consider for every 2 inch difference in chain length it's a 1" change in height on the chest.   If you are interested in a length of chain I do not show as an option, you may send a request for a quote.  I may be able to accommodate your request and will respond to let you know.