You might have seen her walking down the streets of London with her mother or posting pictures of herself with her friends on Instagram. She is Cosima Diamond, the 29-year-old daughter of Nigella Lawson, the British culinary writer and television personality, and John Diamond, the English journalist and broadcaster who died of throat cancer in 2001. Cosima, or Mimi as she is nicknamed, is a rising star in the UK media industry, following in the footsteps of her parents. She loves fashion, cooking, and going to Latymer Upper School, which is one of the best places in the country. The house she lives in with her mother and 27-year-old brother Bruno is painted pink.
Cosima Diamond’s Early Life and Lifestyle
Cosima was born in 1992, the second child of Nigella and John. She has a brother, Bruno, who was born in 1994. She also has two half-siblings, Thomasina and Horatia, from her mother’s previous marriage to the late journalist and politician Michael Gove. Cosima’s middle name, Thomasina, was the name of Nigella’s sister who tragically died of breast cancer at the age of 31. Cosima grew up in a family that loved and cared for her. There were books, food, and fun all around her. She got her parents’ love of writing and news, as well as their funny and witty sense of humour.
Hobby and Interests
She also became very interested in fashion and style, probably because of how fancy and stylish her mother’s clothes were. As a unique and diverse fashionista, Cosima mixes old and new clothes and adds a splash of colour and style to her looks. With coats and jackets, she often wears dresses and skirts, and she dresses them up with hats, scarves, and jewels. She also likes to try out different makeup and wigs, from natural and simple to bold and dramatic.
Cosima is busy on social media, especially Instagram, where she shares pictures of her food, what she wears, and her friends. Over 10,000 people follow her because they like her style and attitude. She is also friends with some of the UK’s most powerful and well-known people, like model Lillie Rage, actor Daisy Edgar-Jones, and singer Dua Lipa.
Relationship with Mother

Cosima has a close and loving relationship with her mother, Nigella Lawson, who she considers her best friend and role model. They often spend time together, shopping, cooking, watching movies, or just chatting. They also support each other during terrible times like John Diamond’s death and Nigella’s divorce from Charles Saatchi, an art collector and advertising magnate she married in 2003 and divorced in 2013. Cosima supported her mother throughout public criticism and court testimony against her former helpers, the Grillo sisters, who were convicted of fraud. She helped her mother rediscover confidence and happiness by encouraging her to be herself and not worry about others.
Nigella Lawson on her daughter
Nigella told The Mirror, “I’m cautious. My former openness is something I hope to regain. Cosima said, “Mum, would you rather be a real person like you or someone with hair and makeup to go to the supermarket?” Being authentic is better. She’s right.” In addition to helping her mother cook, Cosima enjoys eating with her. She learnt recipes and advice from her mother’s TV shows, Nigella Bites and Nigella Express. She also cooks and experiments with new foods and ingredients. Her favourite Asian and Middle Eastern foods include sushi, curry, and hummus.
Future Plans and Aspirations
Cosima is doing A-levels at Latymer Upper School, one of the UK’s most elite and costly schools. She is smart and diligent in English, history, and art. Her extracurriculars include drama, music, and athletics. She’s in the school chorus, orchestra, and hockey. She loves to travel and experience different cultures.
Career
She visited France, Italy, Spain, Greece, Turkey, India, Thailand, and Japan. Cosima wants to pursue journalism, media, or literature in college and wants to work in media like her parents. Writing for Grazia, The Guardian, and The Times has given her experience and visibility. She’s been on The One Show, Woman’s Hour, and Desert Island Discs. She has auditioned for acting, modelling, and fashion design. She is a clever and adaptable young woman with many possibilities.
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FAQs
Q: How old is Cosima Diamond?
A: Cosima Diamond is 29 years old. She was born on 6 January 1992.
Q: Who is Cosima Diamond’s father?
A: Cosima Diamond’s father is John Diamond, an English journalist and broadcaster, who died of throat cancer in 2001. He was married to Nigella Lawson from 1992 to 2001.
Q: Who is Cosima Diamond’s mother?
A: Nigella Lawson is the mother of Cosima Diamond. She is a British food writer and TV star who is known for her shows and books like How to Eat, How to Be a Domestic Goddess, Nigella Bites, and Nigella Express. In 1992–2001, she was married to John Diamond. From 2003–2013, she was married to Charles Saatchi.
Q: Does Cosima Diamond have any siblings?
A: Cosima Diamond has a brother, Bruno, who is 27 years old. He is the son of Nigella Lawson and John Diamond. She also has two half-siblings, Thomasina and Horatia, who are the daughters of Nigella Lawson and Michael Gove.
Q: Where does Cosima Diamond live?
A: Cosima Diamond lives with her mother and brother in London in a pink side-street house. She also has a flat in Notting Hill that she uses when she’s not at home.
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