I have not personally had your experience..And I sure hope you get your precious items back!
I do want to say that I lost some of my own stuff in my cabin and my steward found different things for me on different days and put them back where they belonged! He was a lifesaver. I couldn't very well have completed my cruise with a missing hair brush! I intentionally only brought one piece of expensive jewelry and kept it around my neck the entire time. Seems like I left an expensive camera out several days and it was never touched. I feel like those guys were pretty honest. I could not say the same for the guys on Celebrity who robbed my room.
I think you have a decent shot at getting your things back. Probably 50/50. Good luck!