Kate Middleton beamed as she arrived for the German state banquet alongside Prince William . And it is easy to see why: the Princess of Wales was at her resplendent best in a glittering lilac gown by Jenny Packham as she joined her husband, King Charles III and Queen Camilla to welcome the visiting dignitaries to the opulent evening at St George's Hall, Windsor Castle.

All eyes were on her show-stopping tiara: the Queen Victoria Oriental Circlet Tiara, which marked the Princess's first outing in the diamond and ruby encrusted piece. Originally commissioned by Prince Albert for his wife, it is among the lesser-seen pieces in the royal collection and is only believed to have been worn once by Queen Elizabeth II.

The Princess of Wales typically favours the more subtle Lover's K

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