Kate Middleton steps out of her comfort zone in a daring, rented look as she pays homage to Diana with iconic choker

Kate Middleton wowed fans as she stepped out in a much bolder look than many have expected from the princess. In a fluorescent, neon green off-the-shoulder dress, Kate lit up the green carpet laid out for William’s Earthshot Prize. The dress, in keeping with the theme of sustainability, is a rental from HURR. Catherine paired the dress with the Queen Mary of Teck emerald art-deco choker, a favorite heirloom of the late Princess Diana’s.

• Catherine, Princess of Wales stepped out onto the Green Carpet in a bold, neon green rental dress.
• The off-the-shoulder gown can be rented for less than $100 from HURR, a site to rent and reuse designer dresses.
• In other royal news, Prince William and Kate Middleton blindsided by Harry and Meghan's Netflix trailer.

With the likes of David Beckham and Annie Lennox on the Earthshot Prize’s Green Carpet, it would be understandable if people got lost in the starry crowd.

But the Princess of Wales had all eyes focused firmly on her as she stepped out in a stunning, green off-the-shoulder gown.

The neon green outfit – a much brighter hue than many have come to expect from Kate – is a rental dress from HURR, fitting in with William’s request that all guests attending reuse their clothes and commit to being more sustainable as they tuck into a vegan and locally sourced menu.

The price of Catherine’s dress when bought new is around $430 (£350), and it can be rented from HURR from $91 (£74).

It is called the Sabina, by Solace London. 

Solace London Sabina dress, retail price $430 (£350), HURR rental from $91 (£74)

The Sabina is floor length modern gown featuring an exaggerated neckline. With a body-conscious fit, self-lined to sculpt the body, and a signature high kick split.

View Deal

However, one part of Kate’s outfit not as easy to replicate is the incomparable, emerald art deco choker.

This choker, the Delhi Durbar Emerald Choker, was a favorite of Princess Diana’s – in fact, Diana’s mishap became an accidental style moment as she turned the choker into a headband.

It was gifted to Diana by Queen Elizabeth upon her wedding to Prince Charles, but the choker dates even further back. A truly enviable piece, it was first gifted to Queen Mary by the Delhi Durbar during her visit with King George to India on December 12, 1911.

Diamond experts from Steven Stone have previously told woman&home that the choker is worth millions of dollars.

The expert told us, “The diamonds in this piece alone are magnificent, looking to be around 10 carats each. They are old cut stones, which makes them even more valuable. While it’s so difficult to put a value on a piece like this that has such a rich history, it could be worth from $11.7M to $17.6M.”

Demonstrating her ability to serve us different styles, the Princess’ look was almost the complete opposite of what she wore earlier in the day, when she donned a classic but lowkey houndstooth ensemble to visit Harvard University.