You should first request in writing to the wife for the return of your diamond. Once the divorce proceeding have started then you should consider that the "bailment" of your diamond is over and that your diamond should be returned to you. If the diamond is not promptly returned you can consider filing a separate legal action against the wife for conversion and/or return of your property. If the wife's claims that the diamond is hers, then you may have to join the divorce action as a third party claimant and claim your diamond in the divorce case.
Answered on Feb 25th, 2014 at 4:57 PM