1133 20th St. NW, Washington, D.C.D.C. is famously conservative when it comes to fashion, which makes the long-running success of I. Gorman—a showcase for avant-garde jewelry created primarily by European designers—pretty astounding. The store, founded by Ivan and Bonnie Gorman in 1981 and now owned by their children, Adam Gorman and Nicole Gorman-Shrum, performs a savvy balancing act when it comes to merchandising, mixing such timeless fare as three-stone bridal styles with floating-diamond glass sphere rings. The minimal, stylish decor also plays a part in attracting local jewelry hounds who, Adam Gorman says, are “looking to break out of the mold and learn something about themselves, stylistically speaking.” NATURAL PROGRESSION The store was originally located across the street, but the family relocated in 2007 with the mission of creating a lighter, more modern-feelin