More than 200 Princess Diana items will be auctioned, offering a "window into a historic moment".
The collection is part of a Julien's Auctions event titled "Princess Diana's Style and a Royal Collection," which will take place on June 26.
Bidding will begin on May 20 and will include a number of garments by the late Princess of Wales. The aim is to celebrate her style and preserve her legacy.
"Princess Diana holds a special place at the heart of Julien's Auctions and we are honoured to continue to preserve her legacy by telling her story through the pieces that defined her elegance, grace, glamour and spirit," said Martin Nolan, co-founder and CEO of Julien's Auctions.
"This collection is the most significant offering of her wardrobe ever presented at auction, with each item a window into a moment in history and a tribute to a woman whose modesty, style and personal warmth continue to inspire the world," he explained.
The auction will also sell a collection of clothing and artefacts from British royal history, including items once worn by the Duke and Duchess of Windsor, Queen Elizabeth II, the Queen Mother and other members of the royal family dating back to the 19th century.
Julien's Auctions previously sold one of Princess Diana's dresses for US$1.14 million (€1 million), and in 2024 a pair of her shoes fetched US$390,000 (€356,000) at auction.
Ahead of the sale, the Museum of Pop Culture (Mopop) will host an exhibition to offer the public the chance to view the items before they go to auction, as part of a new collaboration with Julien's Auctions.
"This collection is dedicated to Princess Diana's lasting influence as a cultural and fashion icon. Her style, grace and humanitarian spirit continue to resonate across generations," said Michelle E. Smith, CEO of Mopop.
The collection will also be on display at the Museum of Style Icons (Mosi) in Newbridge, Ireland, from mid-May to mid-June 2025.
A portion of the sale of Princess Diana's items will benefit Muscular Dystrophy UK.
The auction will take place on June 26 at 10 a.m. at the Peninsula Beverly Hills Hotel. | BGNES