just got my ering with 30 day return policy and free resizing.

The thing is that I am going on a business trip for 2 weeks in about 2 weeks and I don’t plan on proposing anytime soon, maybe in like 4-6 weeks? I am not ready yet. I want it to be a surprise to her. I know I picked the right setting but I have no idea whether the ring actually fits her. I did use the ring sizer to estimate it but I am not 100% sure.

I am thinking about just blind folding her and try the ring on to see how she feels in it and take it off? I know shes gonna be furious but what other choices do I have?

Any ideas?