When respected American jewelry historian, Kate Kirby, receives a call about the Cheapside jewels, she knows she's on the brink of the experience of a lifetime. But the trip to London forces Kate to explore secrets that have long been buried by her own family. Back in Boston, Kate has uncovered a series of sketches in her great-grandmother's papers linking her suffragette great-grandmother Essie to the Cheapside collection. Together with photographer Marcus Holt, Kate Kirby chases the history of the Cheapside gems and jewels, especially the story of a small diamond champleve enamel ring. Soon, everything Kate believes about her family, gemology, and herself will be threatened.