Traditionally, the groom purchases the wedding ring for the bride, while the bride purchases the wedding ring for the groom. However, in modern times, this tradition is not strictly followed, and it is common for couples to discuss and decide together on the purchase of their wedding rings. Ultimately, the decision on who buys the wedding rings is based on personal preferences, cultural traditions, and individual circumstances. It is important for couples to have open communication and make a decision that feels right for them.