Re-designing your old jewellery.

http://www.dominicwalmsley.com/bespoke_commissions.php

Our customer was thrilled when she saw what we had done with her old jewellery.  We removed the diamonds and gave them a good clean.  We then melted down the old rings and added a little more to create this design we had made for her.
I think it has to be the best way of re-using your old jewellery.
If you would like some advice on this sort of thing, please feel free to ask.