Couple rings have become a popular trend in South Korea, with the tradition starting in the 1970s. The rings are seen as a way for couples to publicly declare their love and commitment to each other and show off their status as a couple. There are many different types of couple rings available, ranging from simple gold bands to elaborate designs with diamonds and gemstones. However, the popularity of couple rings has waned in recent years, with younger couples preferring to express their love and commitment through social media or other forms of public displays of affection.