Although two years have gone by since the couple parted ways, the pretty blonde is still on good terms with the young royal set.
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Zimbabwe-born Chelsy got the chance to catch up with Harry's cousin Princess Eugenie on Thursday at a launch party for ethical fashion label Beulah London's scarf in collaboration with Hennessy Gold Cup to mark Anti-Slavery Day .
And the gal pals looked thrilled to be in each other's company.
They were joined at the do - at London's The Brompton Club - by newlywed Holly Valance, still glowing after her island paradise honeymoon and lavish Beverly Hills wedding.
Harry and his family will always have a special place in Chelsy's heart, despite the fact they've both moved on.
The third-in-line has been linked to ladies including Mollie King from the Saturdays and society beauty and model Cressida Bonas since their split.
Meanwhile Chelsy has been spotted out with property developer Taylor Williams and Harry's art dealer pal Blaise Patrick.