Open since 1930, this is the first place Washingtonians go for estate and antique jewelry; the six-story store next to the Mayflower Hotel also sells the pieces of many designers, from Links of London to Christian Tse, as well as crystal and other house gifts. In the month leading up to Mother’s Day, the Tiny Jewel Box holds its top-to-bottom sale, where you can save anywhere from 10 to 75% on most merchandise, including jewelry, handbags, and home accessories.