Couples Speak Up: Why They Do—Or Don't—Buy Their Diamond from You Most couples don't consider a betrothal to be "official" without a diamond ring. There are approximately 2.3 million marriages per year in the United States, and 81% of all brides receive an engagement ring, according to the latest figures from De Beers. Seventy-four percent of all brides receive a new diamond engagement ring (presumably the others get antique or estate rings or family he...