The Queen also donned Van Cleef & Arpels Sweet Alhambra Heart 18k rose gold & carnelian bracelet (£1,460) and the same brand's five motifs bracelet.

But it was her stunning hat which caught everyone's attention. The Queen chose a wide-brimmed straw hat by Locke & Co. that she's previously worn before, including at this year's Royal Ascot earlier in the summer.

Royal fans were impressed with the Queen's outfit and took to social media to praise her.

One user said on X: "Perfect hat for Sydney as if it's raining / Summer, it would be super humid."

A second one agreed: "Love the big hat. Only she could pull it off. Additionally, I love the coat. Reminds me of her outfit for the blessing of their wedding."

A third one chimed: "Thank you, gorgeous outfit. Such a pretty colour and I hope we get to see the dress underneath."

A fourth one commented: "She has the best hats. She looks fantastic in the big ones!"

A fifth one opined: "She looks fab as always."