CAN'T-MISS COLLECTION For the People Debra Navarro had worked in a jewelry store for 15 years when she saw Sharing the Rough, a documentary about mining in East Africa. The film motivated her to make a life-changing decision: In 2015, she visited Kenya and Tanzania with the filmmakers and, later that year, left retail in order to design her own eponymous line of jewelry featuring gems sourced from the region. “Understanding how it all begins added so much meaning to every piece of jewelry,” she says. “I felt compelled to tell that story.” Since her intercontinental leap of faith, Navarro has returned to East Africa three times to ­purchase gems—including tourmaline, tanzanit