She wore shoes by French designer Chanel to greet French president Emmanuel Macron in 2020.
Her diamond brooch at Queen Elizabeth II's funeral paid tribute to the Queen's historic reign.
At her wedding to King Charles III (then Prince of Wales) in 2005, Camilla wore a diamond and black pearl brooch with significance to both of their families.
British Vogue reported that Charles' great grandfather King Edward VII bought the brooch for Camilla's great-grandmother Alice Keppel, who was believed to be his mistress.
The brooch also featured feathers, a symbol of the title of Prince of Wales dating back to the 14th century.
She wore heels by Chanel, a French designer, to welcome President Emmanuel Macron of France to Clarence House in 2020.
Macron's state visit marked the 80th anniversary of former French president Charles de Gaulle's appeal to French people to resist the Nazi occupation.
Camilla paid tribute to her French guest with a pair of cream Chanel shoes with black toe caps.
The Chanel logo of two "C"s may also function as a subtle tribute to "Charles and Camilla."
According to Stephen Barry's book, "The Diana Chronicles," Camilla gave Charles Chanel cufflinks as a wedding present, which Diana said caused "total jealousy."
"On our honeymoon, cufflinks arrive on his wrists," Diana said. "Two C's entwined like the Chanel 'C'. Got it. One knew exactly. So I said, 'Camilla gave you those didn't she?' He said, 'Yes, so what's wrong? They're a present from a friend.' And boy, did we have a row. Jealousy, total jealousy. And it was such a good idea, the two 'C's, but it wasn't that clever."
Australian designer Jayson Brundson, who worked with Princess Diana during her Australian tour in 1996, told Harper's Bazaar Australia that Diana wouldn't wear Chanel because of the two "C"s.
"I went through [all the shoe and bag options], and I found a pair of Chanel shoes, and I said, 'Well, these would look great with the Versace,' and she said 'No, I can't wear linked Cs, the double C'," he told the magazine. "So I asked why, and she said, 'It's Camilla and Charles.'"
Camilla's green dress for a 2020 ceremony with The Rifles regiment of the British Army matched the soldiers' uniforms, and even included the same buttons.
At the ceremony, Camilla took over the role of Colonel-in-Chief of The Rifles from Prince Philip.
Hello! magazine reported that Camilla's green coat with black trim was designed to match the regiment's green uniforms with black buttons. Camilla's coat was also customized with the same black buttons worn by members of The Rifles.
Camilla wore a brooch gifted to her by Queen Elizabeth II at a memorial Service of Thanksgiving for the monarch before her state funeral.
Insider's Mikhaila Friel reported that the brooch originally belonged to the Queen Mother. The diamond accessory depicts a thistle, Scotland's national flower.
Queen Elizabeth inherited the brooch in 2002 after her mother's passing. Camilla was first seen wearing it in public in 2015, and it is unknown when the Queen gifted it to her daughter-in-law.
At the Queen's state funeral, Camilla wore Queen Victoria's diamond jubilee brooch in recognition of the Queen's historic reign.
The heart-shaped brooch features three sapphires and the number 60 in recognition of Queen Victoria's diamond jubilee in 1897, according to Vogue. Queen Elizabeth II, who was Queen Victoria's great-great-granddaughter, ruled for 70 years and marked her platinum jubilee in February, surpassing Queen Victoria's 63 years on the throne.
Camilla previously wore the brooch for Queen Elizabeth's diamond jubilee celebrations in 2012.
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