Princess Kate dazzles in gorgeous green gown and Princess Diana's iconic choker at the Earthshot Prize Awards

Princess Kate dazzled royal fans once again after she stepped out in a show-stopping green gown while walking the green carpet on Friday night.

All eyes were on the Princess of Wales as she attended the annual Earthshot Prize Awards at the MGM Music Hall in Boston with her husband, Prince William.

Attendees were urged to 'dress sustainable' and encouraged to re-wear outfits.

Meeting the brief, the royal mum-of-three looked absolutely flawless in a beautiful fitted, neon gown from Solace London, which she borrowed from British fashion rental platform Hurr.

But while her dress was at the more affordable end of the style spectrum, her jewellery certainly wasn’t.

Kate accessorised the vibrant green dress with Queen Mary’s Art Deco emerald and diamond choker, which was last owned by Princess Diana.

She also wore the matching emerald and silver earrings, also once worn by Diana.

The evening marked the end of the couple's first US tour in eight years.