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Rare Pink Diamond Returns to Public Display a Century After 1926 Theft

The Grand Condé, a nine-carat royal pink diamond, is on public display for the first time since it was stolen and hidden in an apple in 1926.

Published October 17, 2026 at 7:12 AM EDT

The short answer

The Grand Condé, a nine-carat royal pink diamond, is on public display for the first time since it was stolen and hidden in an apple in 1926.

Rare Pink Diamond Returns to Public Display a Century After 1926 Theft

The Facts

Who
Condé Museum Director Mathieu Deldicque.
What
Public display of the Grand Condé pink diamond.
When
Currently on display through January 3.
Where
Château de Chantilly, France.
Why
The diamond is a rare surviving royal jewel with a documented history of theft and recovery, now being shown with new scientific identification data.

The "Grand Condé," a nine-carat pear-shaped pink diamond, has returned to public display at the Château de Chantilly in France. The exhibition marks the first time the public has been permitted to view the gemstone since it was stolen in a heist almost 100 years ago.

The diamond was taken during an overnight raid on the Château in October 1926. It was recovered several weeks later after being hidden inside a hollowed-out apple at a hotel. According to the museum, the gem was discovered when a maid at the hotel attempted to eat the fruit. Mathieu Deldicque, director of the Condé Museum, stated that while the account appears unusual, it was documented by newspapers during the period of the recovery.

The current exhibition at the Condé Museum features the diamond alongside previously unseen archival materials and recent academic studies regarding the gem's physical properties. Deldicque noted that this scientific analysis was conducted to ensure the stone is uniquely identifiable. The director declined to disclose the specific insurance value of the diamond but noted security concerns following recent thefts at other European cultural institutions, including a robbery of jewelry from the Louvre in Paris.

For the general public, the return of the jewel provides access to an artifact that has been largely withheld from view since the 1926 theft. Visitors will notice the results of modern academic research integrated into the display, which the museum uses to verify the diamond's authenticity and provenance. The history of the stone, which was first recorded in a 1740 inventory of the Prince of Condé, highlights the legal and physical preservation of French heritage items bequeathed by the Duke of Aumale to the Institut de France.

The exhibition is scheduled to remain open through January 3. No further details regarding future tours or permanent display changes were reported. The museum has not announced new security protocols beyond the mention of the diamond's unique identification markers. Future auctions of similar stones may further influence the market value of the collection, though the Grand Condé remains part of a permanent bequest that limits its sale.

Timeline of what happened

Key dates and decisions, in the order they occurred.

  1. 1740

    Diamond first mentioned in inventory of Louis Henri de Bourbon

  2. October 1926

    Diamond stolen in overnight raid on Château de Chantilly

  3. November 1926

    Diamond recovered after being found hidden in an apple

  4. April 2017

    A pink diamond fetches record $71.2 million at auction

  5. November 11, 2020

    Purple-pink diamond sells for $26.6 million

Summaries are written by The Plain Record to state the facts of a story plainly and without political slant. Drafted with AI assistance and checked against the source record before publication. See how we report, or report a correction.

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Questions readers ask

What happened: Rare Pink Diamond Returns to Public Display a Century After 1926 Theft?

The "Grand Condé," a nine-carat pear-shaped pink diamond, has returned to public display at the Château de Chantilly in France. The exhibition marks the first time the public has been permitted to view the gemstone since it was stolen in a heist almost 100 years ago.

Who is involved?

Condé Museum Director Mathieu Deldicque.

When did this happen?

Currently on display through January 3.

Where did this happen?

Château de Chantilly, France.

Why does this matter?

The diamond is a rare surviving royal jewel with a documented history of theft and recovery, now being shown with new scientific identification data.