My personal style signifier is a vintage grey‑marl sweatshirt that I bought from Mister Freedom in Los Angeles and wear with my uniform of jeans, a boyish jacket and some lapis-lazuli bangles from my own collection. I love the colour and believe in the stones’ power; it really affects my mood. 7161 Beverly Blvd, Los Angeles, CA 90036 (+1323-653 2014; www.misterfreedom.com). www.isabelmarant.com.
The last thing I bought and loved was a scooter helmet from motorcycle brand Ruby. It is white with a lambskin lining and has a vintage look. €700;1 Rue Hérold, Paris 75001 (+339-5388 8747; www.ateliersruby.com).
And the thing I’m eyeing next is a Giacometti sculpture or Picasso drawing. I try not to spend money on small silly things and will buy something by an artist I really admire instead, usually from Parisian auction house Piasa, whose lots range from vintage comic strips to Old Masters. Or Galerie Downtown, which always has amazing pieces of 20th-century art and design. Galerie Downtown, 18 Rue de Seine, Paris 75006 (+331-4633 8241; www.galeriedowntown.com). Piasa, 5 Rue Drouot, Paris 75009 (+331-5334 1010; www.piasa.fr).
A recent “find” isa members-only website called Resee, which sells great designer vintage clothes, in pristine condition, from across the globe. It was founded by two former fashion journalists, who style the collection and present it like the pages of a magazine. www.resee.com.
The last meal that truly impressed me was at Kagayaki in Paris’s third arrondissement. I adore fusion food and this Japanese restaurant combines unexpected flavours to spectacular effect, especially in the foie-gras teppanyaki. 79 Blvd Beaumarchais, Paris 75003 (+331-4887 6188).
An unforgettable place I’ve travelled to in the past year is Sri Lanka, where I loved everything from the Buddhist spirit and wonderful people to the gorgeous tea plantations and beaches. I stayed at Paradise Road The Villa Bentota, a beautiful boutique hotel on the southwest coast with a stunning pool and gardens. 138/18-138/22 Galle Rd, Bentota (+943-4227 5311; www.paradiseroadhotels.com).
The best souvenir I’ve bought home is an exquisite 1920s harmonium from Rajasthan. I don’t play very well but it still produces a wonderful sound.
My favourite room in my house is my son’s bedroom. We live in a large loft with high ceilings, and although it’s a fantastic space, you can feel lost in it at times. My son’s room is small and cosy, like a nest.
The last item of clothing I added to my wardrobe was a Rick Owens black leather jacket. I actually bought it for my husband as a gift but I’ve since adopted it for myself. www.rickowens.eu.
The beauty staples I’m never withoutare Sensai face cream and Weleda Wild Rose Smoothing Day Cream, which smells delicious. I get dry skin because I swim a lot, so I also have plenty of Dr Hauschka Body Oil. Dr Hauschka Body Oil, £20 for 75ml; www.dr.hauschka.com. Sensai Cellular Performance Lifting Radiance Cream, £185 for 40ml; www.sensai-cosmetics.com. Weleda Wild Rose Smoothing Day Cream, £15.95 for 30ml; www.weleda.co.uk.
An object I would never part with is my handbag and everything it contains – and my scarlet lipstick in particular, preferably Chanel. £26; www.chanel.com.
The best gift I’ve received recently is a Kindle. I enjoy reading but hate carrying books, plus I’m always losing my glasses and with this I can enlarge the font as much as I need. The backlight also means I can read in my cabin in Fontainebleau, which has no electricity – or running water. From £59; www.amazon.co.uk.
The last music I downloaded was John Newman’s Love Me Again, which isn’t very me but I like the song, and Connan Mockasin’s off-beat psychedelic-pop album Forever Dolphin Love. I will probably grow tired of John Newman within a week but Connan Mockasin I will love forever.