Chantilly
- From 17 October 2026 to 3 January 2027 at the Musée Condé. Note: some listings announce February 2027; the château's official website gives 3 January."Le Diamant rose" exhibition, château de Chantilly and L'École des Arts JoailliersThe pink diamond goes on show at Chantilly, in the museum that has kept its own for two centuries.