A diamond engagement ring has come to represent the quintessential testament of love and commitment, but how and when did the tradition of presenting your fiancé with a diamond ring begin? The concept of a diamond engagement did not gain popularity until the 1930s, and by the 1960s is is estimated that 80 percent of the brides in the United States received a diamond engagement ring. There are many different engagement ring settings a person can choose from, so we wanted to help you choose the perfect diamond engagement ring setting.