Prince Harry's cousin Lady Amelia channels Princess Diana in …

Lady Amelia Windsor's brand vocabulary remains forever unrivaled. To say the 28-year-old is well-versed in cutting-edge fashion would be an understatement, as she has fully immersed herself in London's avant-garde style scene.   

On Wednesday evening, Lady Amelia attended a cocktail party to celebrate the SIEDRES pop-up shop on Conduit Street. The socialite wore the Turkish brand's 'Aria Top,' which featured a sunny shade of baby yellow, delicate lace panels with self-tie ribbon detailing and a weblike floral design.

WATCH: Lady Amelia Windsor Style File

The 28-year-old paired the GBP235 garment with some sleek black trousers, in turn conjuring up images of Mediterranean summers fused with classic city style.

She wore her sandy hair down loose and opted for a glowing beauty blend to highlight her modelesque features.

Lady Amelia Windsor attended a cocktail party to celebrate the Siedres pop-up shop(C) GettyLady Amelia Windsor attended a cocktail party to celebrate the Siedres pop-up shop

The ethical fashion pioneer emulated Princess Diana's iconic style with her chosen outfit. The late Princess of Wales had a penchant for sunny yellow looks, complete with frills and furbelows galore. From overseas trips to Australia to decadent banquets, a cheery yellow look was always packed and ready to go in the princess' inventory.

amelia windsor in a yellow lace bouse with ethereal tie-ribbon detail from the brand(C) Getty ImagesThe socialite wore a yellow lace blouse with ethereal tie-ribbon detail from the brand

Lady Amelia was joined at the affair by fashion's top influencers including Lissy Roddy, Parisa and the Bonsu twins.

Attendees gathered to marvel at the brand's latest collection, which boasted playful textural juxtapositions, colourbomb colour schemes and on-trend Y2K butterfly prints.

Sequined lingerie sets contrasted with ruffled-clad sheer dresses and deconstructed lightweight cardigans to offer up the ultimate beach party wardrobe for this summer.

Get the look:

seirdres top

SIEDRES was founded in 2019 by Ceylin Turkkan Bilge and Emir Bilge, and is a label dedicated to adorning people in their daily lives with easily customisable pieces. *Adds to wishlist*

As her latest look demonstrates, the stylish cousin of Prince Harry and Prince William never strays too far from her eco-conscious agenda, and her latest pair of jeans are perfect for spring dressing.

Diana, Princess of Wales arrives in Canada donning a yellow blouse(C) Getty ImagesDiana, Princess of Wales arrives in Canada donning a yellow blouse

From recognised sustainable labels like Reformation to brands with 2000 Instagram followers, Amelia is always providing outfit inspo whilst championing planet-friendly fashion.

MORE:  Lady Amelia Windsor proves she's the most fashion-conscious royal with new sustainable shoe collaboration 

MORE: Lady Amelia Windsor's sustainable co-ord is utterly affordable

The green-fingered socialite uploaded a photo to her Instagram story that was so springlike we could almost smell the air through the screen.

Peacefully sat outdoors with her feet up on a bench, Amelia snapped a shot of her khaki garden boots paired with the coolest patterned jeans from sustainable label Fanfare.

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