First,  you should make a list of all the jewelry that you believe exist. Then, you should obtain all receipts from credit cards, bank statements and/or the stores in which you purchased it from to evidence your list.Then serve a written list of questions called interrogatories asking your husband to certify under oath as to his recollection of the jewelry. Following these responses, you can then take a deposition and cross-examine him with all the records that you have regarding the purchase of jewelry that conflict with the answers that he put in response to the interrogatories.