Wedding rings stolen during shipment

Please if anyone can help my husband and I were shipping our wedding rings to the US to my mother in law to get our diamonds cleaned and tightened. We shipped them Monday and the package arrived Thursday with the three rings missing. We have informed an post and the police. The rings are described as female engagement and wedding ring set: white gold, both rings have 3 diamonds in each, the engagement rings middle diamond is a little larger that the two side ones. Male wedding ring: white gold with 3 diamonds in it, diamond on the left side of the ring was missing. If anyone finds these or see them please please please get in contact as they hold more of a sentimental value than anything else. Thank you