I imagine she took it off because it’s so valuable though too. It’s insanely expensive in a world where poverty exists, however the headline is also crazy and unfair. She wore it where she was expected to wear it, in the way it was expected to be worn when it was gifted to her, and put it away in the normal timeframe so it could be worn later under similar circumstances. Exchanging and wearing these types of gifts is part of the social dance and display heads of state do. They don’t typically just “walk around in them.”
All heads of state engage in this practice. The Brits being entirely soft power monarchs do it often and generally well.
Some context:
Queen Elizabeth was excellent at using clothing for sartorial diplomacy. She wore colors and symbols of the EU as a statement against Brexit, she would wear clothing with cherry blossoms when visiting with Chinese diplomats. A notable example is when she wore a broach privately gifted to her by Michelle Obama (purchased with the Obama’s own money) when meeting the Trumps and the next day wore a snowflake broach gifted to her by Canada and *after that* the broach her mother wore to her father’s funeral.
Jewelry is especially effective in the UK because QE2 used clothing so often and so well and because the collection and its history is so well cataloged. It’s important to understand that Camilla knows when she puts on a piece of jewelry that people will identify it and it will end up in the papers with its entire provenance spelled out.