You need to tread very lightly here.  I can not, as an officer of the court, advise you to keep the matter quiet and under wraps until the statute passes. That would be unethical. And I think that you have an obligation to advise the insurance carrier that the jewelry was subsequently found and to pay back the claim.  Taking this advice is, of course, up to you and your conscience.  I believe that in your state the statute of limitations for insurance fraud is 3 years from the time that the commission of the crime is discovered but no more than 7 years after the date the fraud actually occurred.  I would, of coure, double check on that as soon as possible.