I got this Tiffany's key necklace for my birthday two years ago from my Mom. It's really classic and I'll keep it forever. I get a ton of compliments on it, even after this long. The only thing is that I want to get a longer chain for it. I think it'd look better as a long necklace than a short one.
I'm obsessed with my Michael Kors silver watch. It's bigger face makes it look less grandma-y. Every time I put it on I feel like I'm putting on something really special. It dresses up a really casual outfit, dresses down something fancy, and is the perfect piece for an interview. It's definitely one of the best investments I've made for my wardrobe.