The day usually starts with some raw notes on Kito's electric guitar signalling the end of my lie-in at around 9.30.

Either that or an avalanche of books around my head . . . at the moment he's interested in fish and sharks, planes and cars.

It's all information as opposed to stories.

We laugh and cuddle in my bed for a while before going downstairs to have breakfast in our pyjamas. It's a deliberate strategy on my part . . . we go to bed late on Saturday in order to ensure that bit of time on Sunday morning. I do think there's a spiritual dimension to Sunday . . . everyone is so tense during the working week that Sunday presents an opportunity just to be and to share.

Kito takes the lead in the kitchen . . . he's enjoying learning how to cook under supervision.

At the moment we're on a scrambled eggs and smoothies roll. I'm hoping that when he develops some proficiency in the kitchen I'll get to have breakfast in bed.

We chat and catch up over breakfast and then usually get dressed and head over to Herbert Park with a ball at around half past 11 or 12. He fancies himself as either Ronan O'Gara or Zidane. I'm always the goalkeeper. It's fun and a bit of exercise too. We go to the playground then and see some familiar faces.

Often we go to a friend's house for lunch. Sometimes we visit people in the country and go horseriding. Later we drop into my parents . . . Kito calls them Grampa and Lolis . . . for a family meal. Usually there are a good few people there and it can be quite a family gathering.

They are great cooks . . . it's usually a traditional roast. We always leave clutching a pot of Grampa's special plum jam for school-morning breakfasts. It's a very familiar routine, there's comfort in it.

When we get home Kito has his bath and a story and goes to bed a tired and happy man.

Then I get some quite time on my own.

I catch up with the papers and listen to music or else get the sketch pad out and set myself up for the week ahead. I recently designed a special bracelet for Mary Robinson, who's been the patron of One Family . . . a charity and support network for one-parent families and children . . . for many years. The piece is made of freshwater pearls and 18carat gold with emeralds as they are her birthstone. It was a thank you to her for being so inspiring. I have a lot of admiration for her and all the work she has done in the field of human rights.

At the moment I'm working on a big wedding project in the Middle East and another wedding in Budapest. I'm designing special jewellery and also the wedding environment. I like the fact that my work isn't just about fashion, although I do fashion jewellery too and my collection is stocked in places like Havana and Juju in Greystones. I'm also working on a project with Swarovski which is great fun.

In conversation with Katy McGuinness