posted by OSH
Cheap? Sure. Not sure why that'd be a bad thing. Being sentimental isn't bad, nor is it "unstylish" if that's what you want.
If he wants to buy a nice ring, so be it. But, it'll be communicated the thoughts. My wife will do the same, as she doesn't think it's wise to drop that much money on a ring either. Same with our two girls, they'll understand the value of the marriage is bigger than anything a ring can buy.