London, 1927. Diamond Sharp writes a racy newspaper column, using a fake name to conceal her identity. When she meets two charismatic American men who are bitter enemies, her life is turned upside down. She is drawn to both of them but isn't sure whom she can trust. As she becomes increasingly involved with both, Diamond begins to uncover a nest of secrets that puts both her heart and her reputation at risk.

Blending the rich historical detail of Philippa Gregory's novels with the sophisticated glamour of Sophie Kinsella's Shopaholic books, The Jewel Box is romantic historical fiction at its finest.