Le diamant rose

Exhibition at the Château de Chantilly, 17 October 2026 – 3 January 2027

Documented in the collections of the Princes de Condé since at least the 18th century, the Pink Diamond is one of the rarest and most mysterious jewels in Chantilly’s heritage. Its history is also marked by a spectacular episode: its theft in October 1926, before being recovered shortly afterwards in circumstances as unexpected as they were novel.

Long hidden from view, this exceptional diamond is revealed in this exhibition catalogue through an interdisciplinary approach that is at once historical, scientific and heritage-focused. Drawing on extensive gemmological and historical research, it traces the journey of this unique stone, sheds light on its characteristics and examines its place in the history of princely collections. Combining investigation, rediscovery and fascination, it invites readers to explore the secrets of a treasure that has long remained in the shadows.