L&Co. Jewels Japan (Lucky Co. Open Factory)

L&Co. Jewels Japan, also known through its Lucky Co. Open Factory tours, operates inside a genuine working jewelry workshop in Kofu, a city where over a thousand jewelry-related companies are based and roughly a third of Japan's jewelry manufacturers operate. Rather than a pure retail counter, the business combines a showroom selling finished silver, gold, and gemstone jewelry with guided, English-accessible sessions of about 30 minutes in which visitors can make a simple piece themselves under a craftsman's supervision, using reservation-based booking. The retail selection spans everyday-priced silver pieces up to finer gemstone work incorporating Yamanashi-associated stones, giving a wide price range depending on materials and craftsmanship. Because the workshop is a functioning factory rather than a staged tourist attraction, visitors get a genuine look at Kofu's jewelry-making process, distinguishing it from souvenir shops that only sell finished imported pieces. Prices are fixed, and payment is by cash or card; larger purchases can qualify for tax-free processing with passport presentation. Reservations are recommended for the hands-on sessions, particularly on weekends.