Kate Middleton knows that her outfit choices carry significant meaning – and in selecting a piece designed by a society tailor who's distantly related to the royal family, she has showed off her knack for diplomatic dressing once again.

Earlier this week, the Princess of Wales delivered a speech on behalf of her signature project, the Royal Foundation Business Taskforce for Early Childhood, at the Future Workforce Summit. Arriving at the Salesforce Tower in London , Kate was the picture of business chic – donning a smart new trouser suit by Roland Mouret, paired with a navy Smythson bag and diamond earrings from Mappin & Webb, which she first wore for the christening of her 10-year-old daughter, Princess Charlotte .

It was her blouse, however, which really caught the eye of royal

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