The Queen is telling Kate Middleton what to wear to Australia

"Subtle but significant regal makeover."

Vanity Fair - via The Mail on Sunday - has reported that the Queen has ignited a "subtle but significant regal makeover" of Catherine, Duchess of Cambridge for her upcoming tour of Australia in order to convey a more royal image.

Vanity Fair have noted that this will be an "upgrade" from her more accessible and high street-level wardrobe. However, some of Middleton's biggest fashion hits have included Alexander McQueen, Roksanda Ilincic and other fashion-forward and decidedly non-high street pieces (with, prices to match surely). Unsurprisingly, several of Middleton's favoured designers such as Alice Temperley and Sarah Burton for Alexander McQueen are rumoured to be designing several one-off pieces, including gowns and day dresses.

The Duchess has been advised to wear a wardrobe of day dresses with lower hemlines, and to favour larger jewels and tiaras. Two jewellery pieces under consideration include a diamond and ruby brooch in the form of a hibiscus flower – which was given to the Queen Mother by Australia in 1958; and the Queen's own golden wattle brooch made of yellow and white diamonds, a gift to the Queen on her Coronation Tour in 1954. Middleton's personal hairdresser, Amanda Cook Tucker, has been confirmed to accompany her on her tour so will help securing the tiaras (Princess Mary told us it isn't quite as easy as it looks). Seems she won't need the services of this Australian hairdresser.

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The Duchess is expected to require up to four outfit changes per day during the three-and-a-half-week tour. An official aide – the Queen's personal dresser Angela Kelly – will accompany her to assist with her wardrobe. Kelly, who has worked with the Queen since 1993, has designed almost all of the Queen's outfits, and has published a book entitled, Dressing The Queen: The Jubilee Wardrobe.

A source revealed: "Angela has been asked to start selecting jewels ahead of the trip. She knows most of the pieces in the Queen's private collection. Her understanding is crucial because this trip will be about Kate appearing more royal than ever – you can expect to see a lot more tiaras – and the Queen will be watching closely." The Queen has also requested that she add some polish her existing personal style, meaning a move away from sweet, girly dresses to more elegant, sophisticated choices.