ONEGOLD is a jewelry retailer specializing in 14K and 18K rings and accessories. Established in 2005, the brand focuses on couple rings and offers collections for weddings, engagements, and proposals, alongside designs inspired by luxury styles, initials, color stones, and themes such as dragons and The Little Prince. Customers can browse options by price range, from the 100,000–200,000 won category to pieces priced above 800,000 won, as well as explore popular in-store selections.

Many featured rings have gently contoured interiors, 360-degree band designs, and options for diamond settings, including selected styles that can accommodate one-carat-point diamonds. The range also includes fashion jewelry such as anklets, bracelets, earrings, fashion rings, and necklaces. ONEGOLD serves shoppers through its online store and a Jongno location, with store information and visit reservations available on its website. Customers can also access product reviews, order and delivery tracking, customer support, and payment information. The site lists a customer service line and consultation hours of 9 a.m. to 9 p.m. daily.