The diamond industry is well aware that millennials aren’t as interested or invested in their product as past generations have been—largely because they are very expensive rocks and not, say, food or shelter—so the concept of “loaner rings” has been pushed to the forefront. According to a new report from Vox, more couples are opting to propose with stones that aren’t diamonds, or with placeholder engagement rings. In the latter case, jewelers allow consumers to place a deposit in the $50 – $200 range for a cubic zirconia alternative. That way, couples have time to save up for the real deal, or the ring-wearer has time to make a decision on an ideal style. That’s well and good, but why not forgo the ring entirely?