What are my options if my wife did not declare jewelry she took away with her when she left the house and filed for divorce?

This jewelry was gift (and had family heirlooms) to me in our overseas pre-legal wedding ceremony.Since this is a significant asset in our short lived marriage (less than two years), I want to claim this as my separate property. However , she hasn't even declared this during discovery process. I have the original receipt from overseas where it was purchased. What can I do legally so she comes clean ?I also want to recover my attorney fee for going through this very unnecessary hassle.