To mark the start of celebrations to mark the 80th anniversary of Victory in Europe Day, also known as VE Day, to honour her grandfather's wartime service in the Royal Air Force. The brooch, which was pinned to the left lapel of Kate's coat, featured a yellow-plated 'RAF' monogram within a laurel wreath, showcasing a symbolism of strength, according to experts.
Diamond experts at UK retailer have revealed the true meaning and value behind Kate's choice of brooch. Maxwell Stone said: "Kate's brooch features a yellow-plated 'RAF' monogram within a laurel wreath - symbolising victory and honour - topped by a Queen Elizabeth II Crown.
"Large feathered wings extend from each side, evoking flight and freedom. I'd estimate its value at around £5,000."

The jewellery experts also added how both Kate and Queen Camilla paid a "quiet tribute" to fallen veterans. Maxwell added: "On VE Day, Queen Camilla and the Princess of Wales paid quiet tribute through the language of legacy - Camilla with the 12th Royal Lancers brooch honouring her father's cavalry service, and Kate with the RAF wings evoking the flight path of her grandfather's wartime courage."
Kate's grandfather, Peter Middleton, during World War II. Her grandfather, also co-piloted 49 of Prince Philip's 62 flights during a two-month tour of South America in 1962.
This occurred years after World War II, as Prince Philip was already a highly decorated officer in the Royal Navy during the war.
Queen Camilla's father, Major Bruce Shand, He participated in the British Expeditionary Force in France and was awarded the Military Cross for gallantry during the Battle of Dunkirk in 1940 and again at the Second Battle of El Alamein in 1942.
This year, the Royal Family marks the 80th anniversary of , commemorating the end of World War II in Europe. The royals will attend a series of engagements this week to commemorate the end of the Second World War.
On May 5, to kickstart the engagements, the Princess looked striking in a deep purple Emilia Wickstead coat dress featuring a belted waist and a pleated skirt, effortlessly completing her look with a matching Sean Barrett hat adorned with a bow and tan Ralph Lauren heels.
Kate and William took part in a family reunion on the 80th Anniversary of VE Day on 8 May, alongside wider members of the Royal Family.
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