For a traditional Jewish wedding, the groom must give the bride a ring made of solid gold without any stones or gems. The ring cannot have anything cut through it completely because an unbroken ring symbolizes commitment to the marriage. The ring can be engraved with a phrase, which is typically written in Hebrew.
Jewish wedding tradition requires the groom to buy a ring for his bride and give it to her on the day of the wedding. The bride can also buy a ring for the groom, but it is not required, and it is not placed on the groom's finger until after the wedding. A double ring ceremony, in which both the bride and groom exchange rings, is possible if the Rabbi who performs the ceremony is more liberal than traditional.
Before the ring became traditional, grooms gave their brides a single coin equal in value to a penny. When the groom presents the ring, he recites the Jewish marriage formula in Hebrew. The bride is not required to say or do anything except place the ring on her finger. The best man places a wine glass under the groom's right foot, which he breaks. The bride and groom are then declared man and wife. They kiss and run up the aisle, and the guests yell "Mazel Tov."