Sarah Ferguson, 63, posted on Instagram to mark the end of Mental Health Awareness Month.
In the photograph the Duchess of York posted on the platform, she could be seen wearing a beige leather outfit.
This outfit is the “Tanika faux leather maxi dress” from the brand Alice + Olivia, which is also loved by Fergie’s daughters, Princesses Beatrice and Eugenie.
The £595 dress has “dropped shoulders, gathered sleeves, press-stud fastening cuffs, chest patch pocket, detachable waist tie, box pleat at back, side splits” and is “fully lined”, according to the description.
This is a new dress for the Duchess, who has not been seen previously wearing the faux leather gown.
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Fergie paired the dress with several gold bracelets on both wrists and also wore some small gold hoop earrings.
The Duchess opted for sparkly bronze eyeshadow with nude lipstick and curled her fiery red hair with a deep side parting.
Royal fans absolutely loved Sarah’s outfit and took to social media to praise the faux leather dress.
Instagram user @tashas_2000 said: “SO GOOD. So so good. One of her best looks ever. The make-up is fantastic, I think Hannah Martin is doing her make for the whole book tour and is she delivering or what?”
Royal fan @rose_mcguire91 agreed: “This might be one of her best looks ever. She looks amazing.”
Another fan, @ellainthecityboston wrote: “Sarah looks lovely and chic. She is triumphing in life’s third act! Bravo!”
Instagram account @anniam.nz added: “I am clueless as to how that tone of beige looks good against anyone’s skin tone. Amazing! She looks fantastic.”
Royal watcher @mydocuments_ commented: “Love it. The dress itself is lovely – the sleeves being a particular favourite detail of mine. But I also love her hair and makeup here — very beautiful and age-appropriate.”
Instagram user @gringa_andante said: “Awesome look!” Similarly, @la_nada_kovic added: “Absolutely beautiful.”
Account @_the_wilted_wallflower wrote: “Grandma Sarah is so chic and wholesome.” Royal fan @pam.forbes commented: “What an amazing colour for her.”
Royal watcher @luxmeagainpreloved posted: “This is a gorgeous look on Sarah! Colour and style (another shirt dress) and faux leather looks very chic!”
Finally, @margoum13 said: “Oh my… Sarah really is a fashion icon, this fierce bold red-haired lady!”