It was the hottest June day on record, with temperatures reaching a sweltering 36.1 C, but that didn’t stop a dazzling array of A-list stars from celebrating diamond jewellery designer Jessica McCormack’s Summer Solstice party on Wednesday evening.Jodie Comer and the jewellery’s brand ambassador Zoe Kravitz descended on Carlos Place in London’s Mayfair for a midweek shindig alongside the likes of Carey Mulligan, Poppy Delevingne and Drew Barrymore.Zoe, who is in town to support her fiancé Harry Styles during his Wembley Stadium residency, looked ultra chic in an asymmetric white slip dress and silver heels for the glam night out.She also flashed her 9-carat sparkler of an engagement ring.The star, 37, demonstrated that she has fully embraced British summer by enjoying a pint of beer at the tavern-themed bash, as she took to the microphone with Jessica to make a speech to the star-studded crowd.McCormack counts the Duchess of Sussex, Lily James and Rosie Huntington-Whiteley as fans of her eponymous label and for her summer party, Hollywood stars Drew Barrymore and Carey Mulligan mingled with Brit models Poppy Delevingne and Alexa Chung. Diamond jewellery designer Jessica McCormack invited a dazzling array of celebs to her Summer Solstice party on Wednesday including Jodie Comer Jodie and the jeweller’s brand ambassador Zoe Kravitz descended on Carlos Place in Mayfair for a midweek shindig. (Zoe pictured with Jessica McCormack)Killing Eve star Jodie, 33, meanwhile stood out in her daring cutaway dress, which exposed her incredible abs. The actress completed her look with wavy locks and fresh, dewy makeup as she partied in the heatwave currently gripping the UK.Jodie has been favouring a more risque sense of style recently. During the New York premiere of her latest movie The Death Of Robin Hood earlier this month, she wowed in a skin-tight black lace gown, under which she went braless. Last month, the Brit spoke to Harpers Bazaar about anxiety she has felt in her career, including her first foray into theatre at 29, saying: ‘I was very anxious, very aware that people were thinking, “Is she going to be able to do this?”‘ On how she has changed, she went on: ‘I have more confidence now, I know myself more. I feel that when you’re playing a character with certain attributes, you are forced to touch upon, discover and illuminate those parts of yourself.’Discussing Killing Eve, she said: ‘Villanelle blessed me. Because she was so multi-faceted, people couldn’t put me in a box. That offered me a lot of freedom.’ Zoe, who is in town to support her fiancé Harry Styles during his Wembley Stadium residency, demonstrated that she has fully embraced British summer by enjoying a pint of beer as she showed off her engagement ring Killing Eve star Jodie stood out in her daring cutaway dress, which exposed her incredible abs The summer party attracted a starry guest list. Pictured: Drew Barrymore, Zoe, Jessica McCormack, Carey Mulligan and Jodie Zoe looked ultra chic in an asymmetric white slip dress and silver heels for the glam night out McCormack counts royalty, models and Hollywood stars as fans of her eponymous label and for her summer party invited the likes of Oscar nominated actess Carey Mulligan Zoe looked effortlessly cool, despite the heatwave, as she departed the party in her summery look and shades Jodie has also learned to embrace what makes her happy and bring a slice of home with her when she’s away on location. Discussing the two months she spent in Belfast filming The Death Of Robin Hood, she revealed that her love of cooking and gardening means she always demands a kitchen in wherever she is residing while on location. She said: ‘It’s a big thing for me. I’ll be travelling up in my car with all these jars of ingredients rattling around, my yoga mat, my blankets.’On her aim in life, she said: ‘My dream, and I’m manifesting this, is to have a space where I can just be in my underwear, gardening.’ Drew Barrymore showed off her quirky sense of style in a loose shirt and trousers, teamed with two ties The chic trio of Poppy Delevingne, Alexa Chung and Laura Bailey caught up at the al fresco bash Actress Marisa Abela looked lovely in a white shirt and pleated cream skirt for the star-studded party which had been set up to include a McCormack’s Tavern