Lady Amelia Windsor and Emma Weymouth put on chic displays as they attend a Vivienne Westwood event at Christie's in London

Lady Amelia Windsor and Emma Weymouth are throwing out the rule book when it comes to summer dressing, ditching florals and bright dresses for chic black outfits for a star-studded Vivienne Westwood event at Christie's London. 

Tonight's event saw the fashion elite gather at the auction house in London's St James for a private viewing of the archive collection, despite the miserable British weather. 

Model Amelia, 28, who is the granddaughter of Prince Edward, Duke of Kent - making her 43rd in line to the throne, looked relaxed in a stylish cropped jacket with a patent finish, black high-waisted trousers and a midriff-baring black crop top.

Emma wore a fitted black blazer with a plunging neckline and a floor-length black skirt, finished with pointed heels and - befitting for the event - a signature Vivienne Westwood clutch bag. 

The Marchioness of Bath stood proudly by her husband Ceawlin Thynn, Viscount Weymouth, who looked smart in a dapper blue suit and crisp white shirt. 

Emma Weymouth, Marchioness of Bath, and Ceawlin Thynn, Viscount Weymouth, attended the private view of Vivienne Westwood: The Personal Collection

Emma Weymouth, Marchioness of Bath, and Ceawlin Thynn, Viscount Weymouth, attended the private view of Vivienne Westwood: The Personal Collection

Vivienne Westwood: The Personal Collection is an exhibition and online auction of nearly 300 pieces from the late designer's personal collection, showcasing her eclectic style. 

'It is a free exhibition, made up of several hundred pieces,' says Adrian Hume-Sayer, the head of the sale, via Galerie Magazine. He continued: 'I've worked in private collections since 2010 and this is a highlight.' 

Vivienne Westwood fans have the chance to get their hands on some of the iconic designer's own archive pieces via an online auction of the collection, which will take place from 14 June until 28 June. 

'This is her everyday wardrobe, and in better condition than you might expect,' Hume-Sayer continued. 

It's been a busy week for socialites Lady Amelia Windsor and Emma Weymouth who attended the Royal Academy of Arts Summer Exhibition party together yesterday.

Lady Amelia commanded attention in a vibrant purple gown as she stepped out at the lavish event in London.

The Dolce & Gabbana model, who is no stranger to premieres and launch parties, added an edgy feel to her outfit with a black handbag, designed like a cottage, and a pair of chunky flat shoes.

Adding a touch of glitz to her off-the-shoulder ensemble, Lady Amelia, who is cousins with Princes William and Harry, donned an array of glittering jewellery, from dazzling bracelets to colourful gem-filled rings.

Lady Amelia Windsor looked elegant in a black cropped jacket and high-waisted trousers

Lady Amelia Windsor looked elegant in a black cropped jacket and high-waisted trousers 

Emma Weymouth carried a signature Vivienne Westwood clutch as a tribute to the designer
Lady Windsor opted for a cropped black jacket with a patent finish

Emma Weymouth carried a signature Vivienne Westwood clutch as a tribute to the designer while Lady Windsor opted for a cropped black jacket with a patent finish

Elsewhere, Emma, 38, looked equally stylish in an eye-catching scarlet maxi dress, featuring daring cut-out embellishments, a plunging V-neck and dainty straps.

The Marchioness of Bath teamed her daring ensemble with a matching red handbag and heels, whilst opting for a bright ruby lipstick to finish off her fiery look.

Emma no doubt turned heads in her dress, which featured a billowing skirt and cinched waist detailing.

She finished off her outfit with a shimmering pair of diamond earrings and an immaculate pink manicure.

Held every year since 1769, the RA's Summer Exhibition celebrates contemporary art spanning mediums including painting, printmaking, film and photography. 

It is the world's oldest open submission exhibition, meaning anyone can submit their work to be considered for inclusion.

Last month, Emma showed off her sartorial prowess as she stunned in a bridal-inspired gown as she wowed at the Hotel Martinez during Cannes Film Festival.

Showing off her Hollywood-style glamour, the former Strictly star slicked her hair back into a sleek bun and wore a full face of make-up as she posed at the bottom of a staircase inside the French festival.

She added diamond drop earrings and a matching oversized necklace, perfectly complementing the white strapless gown.

The dress also had a long train, with Emma having her own Marilyn Monroe moment by twisting and letting her skirt billow in the air.

Emma is often pictured a glamorous events, and recently let her hair down with Princess Diana's niece Lady Kitty Spencer in London.  

Emma married her husband Ceawlin Thynn, 8th Marquess of Bath, 49, at their stunning home Longleat in June 2013 and welcomed their first child John, in October 2014.

Following a pregnancy struggle, the couple welcomed their second child, a son Henry, via a surrogate in Los Angeles in December 2016.

At the time, Emma told the Daily Mail: 'We are simply ecstatic. His arrival has completed our little family and brought us so much happiness.'

Earlier last year the couple purchased a property in West London once lived in by Winston Churchill for £18.5 million.