Zoë Kravitz shines in Jessica McCormack’s renovated London Townhouse

Zoë Kravitz and Carey Mulligan helped turn Jessica McCormack’s newly renovated Mayfair townhouse into a polished piece of brand theater, using a summer garden party to show how the house sells intimacy as much as diamonds. The event unfolded at 7 Carlos Place, the designer’s six-storey, 19th-century flagship, where Mount Street Gardens became part of the stage and the menu leaned into British comfort food, with sausage rolls, Scotch eggs, mini pies and margaritas.

McCormack styled the evening as “McCormack’s Tavern,” a pub-inspired gathering that made the townhouse feel less like a retail address than a private club with very expensive jewels. The brand describes the house as an antique-meets-modern space, filled with art, antiques, specially commissioned sculptures and bespoke furnishings, with a basement workshop hidden behind the scenes. That mix matters: it lets McCormack present diamonds not as remote special-occasion objects, but as part of a lived-in interior world.

Kravitz, Jessica McCormack’s first brand ambassador, collaborator and muse, was the sharpest expression of that idea. She wore a thick white-gold armband emblazoned with “JMc” and set with a seven-carat diamond charm, a look that underscored the brand’s taste for diamonds with attitude and for pieces that read as signature rather than ceremonial. Diamond necklaces were also on display, reinforcing the house’s favored message that its stones are meant for day-to-night wear.

The guest list gave the evening its social charge. Drew Barrymore, Jodie Comer, Caitríona Balfe, Alexa Chung, Poppy Delevingne, Sheila Atim, Nadia Parkes, Marisa Abela, Leonie Brantberg, Camille Charrière and Olivia Singer all circulated through the party, making the townhouse feel like a magnet for the kind of women who can turn jewelry into cultural shorthand. For McCormack, that concentration of celebrity friends does the work of a traditional launch without announcing one.

The party also fit a broader expansion strategy. Alongside Madison Avenue in New York, Harrods and Sloane Street, the Mayfair townhouse gives Jessica McCormack a physical world that can sell atmosphere, access and house codes as effectively as it sells diamonds.