Duchess Kate, the Queen, Prince William and Duchess Camilla step out to Diplomatic Corps reception at Buckingham Palace

Sound the trumpets! <strong><a href=/tags/0/queen-elizabeth-ii>The Queen</a></strong> was joined by <Strong><a href=/tags/0/kate-middleton>Duchess Kate</a></strong>, <strong><a href=/tags/0/prince-william>Prince William</a></strong> and <strong><a href=/tags/0/camilla-parker-bowles>Duchess Camilla</a></strong> at the Diplomatic Corps reception at Buckingham Palace on Dec. 11. The annual event is held each December at the Palace, and is very exclusive, with only about 1,000 guests getting an invite. There was an incredible amount of glamour and diamonds on display at the event! <p><strong>Scroll through the gallery (or click through if you're on desktop) to see the best photos from the evening!</strong> <p>Photo: &copy; Victoria Jones - WPA Pool/Getty Images
Her Majesty arrived looking very pleased to see everyone, with a huge smile on her face and wearing a gorgeous white gown by <strong><a href=/tags/0/angela-kelly>Angela Kelly</a></strong>, all her royal orders, an emerald necklace and the Grand Duchess Vladimir Tiara. <p>Photo: &copy; Victoria Jones - WPA Pool/Getty Images
As for Kate, she looked stunning! She chose the Cambridge Lover's Knot tiara for the fifth consecutive year at the reception! It was loved by <strong><A href=/tags/0/princess-diana>Princess Diana</a></strong> and it has also become the Duchess of Cambridge's favourite crown. She wore it earlier this year to the state dinner reception for US President <Strong><a href=/tags/0/donald-trump>Donald Trump</a></strong> and US First Lady <strong><a href=/tags/0/melania-trump>Melania Trump</a></strong> at the Palace. <p>Photo: &copy; Victoria Jones - WPA Pool/Getty Images
The tiara truly looks gorgeous on Kate! <p>Photo: &copy; Victoria Jones - WPA Pool/Getty Images
Kate also wore a beautiful navy blue velvet gown by <strong><a href=/tags/0/alexander-mcqueen>Alexander McQueen</a></strong>, one of her go-to designers. She paired it with silver drop earrings and one of the Queen's silver necklaces. <p>Photo: &copy; Victoria Jones - WPA Pool/Getty Images
Kate was also donning the Dame Grand Cross of the Royal Victorian Order blue sash, which we saw her wear earlier this year at the state banquet for the Trumps, too! <p>Photo: &copy; Victoria Jones - WPA Pool/Getty Images
Camilla also looked amazing, wearing a Bruce Oldfield gown, silver earrings, a pearl necklace and the Boucheron Honeycomb Tiara, which was previously owned by the <strong><a href=/tags/0/queen-mother>Queen Mother</a></strong>. <p>Photo: &copy; Victoria Jones - WPA Pool/Getty Images
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