Designers: Penny Preville

As a woman in the man's world of designing precious jewelry, Penny Preville stands apart. She has, however, a distinct advantage over her male competitors: she actually wears the jewelry she designs. Preville's jewelry is not only distinctive but is also—more importantly—wearable. While she sets diamonds and precious gems in the finest platinum and 18-karat gold, she has a more modest goal: to make you feel fabulous.