I'm sorry that happened to you. It makes you feel violated, unloved, and a myriad of other things.
I stopped doing inventory of my items of pawn value a long time ago. They lie, even when you catch them red-handed. It just upsets you even more. I began calling the police and that did me no good; in Florida if they live with you, then the police and the prosecutor won't pursue it because it's he said-she said.
If it's your gut feeling they took it, then they probably did. From my personal experience; Don't expect the truth and don't expect compensation. Even if the item is pawned, you probably won't find out where so you can get it back unless you get the police involved.
You can confront if you want; just prepare yourself to not get the answer you want.