Agatha is the perfect place to buy a moderately priced piece of jewelry just for fun. Agatha's line of earrings, rings, hair accessories, bracelets, necklaces, watches, brooches, and pendants is ever popular with Parisians. Styles change quickly, but classics include nifty charm bracelets and fine gold necklaces with whimsical pendants. Métro: Étienne Marcel. Other location: 45 rue Bonaparte, 6, St-Germain-des-Prés, PHONE: 01-46-33-20-00; Métro: St-Germain-des-Prés.