Chelsy Davy and Jacobi Anstruther-Gough-Calthorpe came together for the opening of luxury creative office space The Relay Building on Wednesday evening. DJ Jacobi, whose half-sister Cressida Bonas dated Prince Harry three years after Chelsy split from the British royal, was joined behind the decks by the Zimbabwe-born lawyer.
The 29-year-old showed off her glowing tan in a simply navy dress and open-toe wedges, while Jacobi matched his blonde companion in a navy blue jumper and jeans.
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Jacobi and Chelsy are close friends and have previously holidayed together
Chelsy and Jacobi, who are old friends and have previously holidayed together, were joined at the event by Lady Mary Charteris and her husband Robbie Furze, actor Will Stoppard and his wife Linzi and the evening's host Taylor McWilliams.
Wednesday's outing wasn't the first time that Chelsy and Jacobi have recently been snapped out and about together; in May the pair attended Brown's Hotel Summer Party at Rocco Forte's luxury Mayfair hotel.
While Chelsy and Harry went their separate ways in 2009, the pair have continued to move in the same social circles.
Much like Cressida, Chelsy has maintained a close friendship with Harry's family, including his cousins Princess Beatrice and Princess Eugenie.
Jacobi and Chelsy with the evening's host Taylor McWilliams
In June 2013 Chelsy and her royal pals turned out en masse for the wedding of Lady Melissa Percy and Thomas van Straubenzee. Bridesmaid Chelsy was joined by her former love Harry, Prince William, Pippa Middleton, Cressida, Princess Eugenie, her boyfriend Jack Brooksbank, Princess Beatrice and Dave Clark at the Northumberland nuptials.
Elsewhere in the capital on Wednesday night, Harry's cousin Beatrice attended a Harrods fundraising gala with Holly Branson – whose brother Sam is married to Jacobi's sister Isabella.
Cressida with her half-siblings Jacobi and Isabella
Sarah Ferguson's eldest daughter, who wore an eye-catching metallic skirt and chic black blazer for the event, partied with Holly and her husband Freddie Andrewes, Joanna Lumley and designer Thomas Heatherwick.
Prince Harry's close friend Guy Pelly and his wife Lizzy were also in attendance.