Who is responsible for the purchase of the groom's wedding ring -- the bride or groom?
Generally the couple shops together for both wedding bands -- you'll probably pay for them together, or each buy the other's band as a gift. Or, you can each pay for your own. How to deal with the cost of the wedding bands is really up to the two of you.
See More: Groom Style , Groom Basics , Attire for the Groom