Queen Camilla 's immaculately immense jewellery collection is easily the most impressive aspect of her expensive style – from trendy Van Cleef pieces to heritage jewellery from the Royal Collection, she's got it all. At the State Banquet held on Wednesday , for the visit of Donald Trump and Melania Trump , the wife of King Charles III wore a beautiful piece that she inherited from Queen Elizabeth, the Queen Mother , which also has a royal history dating back to the 1920s.

© Getty Images Queen Camilla wore the royal heirloom to the State Banquet on Wednesday

Queen Camilla's necklace first belonged to a friend of the family

The Queen Consort opted for the famed Diamond Festoon Necklace, which first belonged to Dame Margaret Greville, a high society hostess in the early 20th

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