What the beauty posse really want to know is: which wedding perfume did Kate wear?

It's no surprise; the world has been OB-SESSED with this iconic, beautiful, lucky, gifted and special bride ever since that ring went on, so finding out her most private and personal beauty ritual was bound to happen.

At 5pm on the Wedding Day, Clarence House telephoned a very happy PR company to announced that, yes, indeed, Kate was currently wearing the fragrance she requested from them a few weeks ago. She chose White Gardenia Petals, created by The House of Illuminum founded by British perfumer Michael Boadi.

Michael - originally a hairstylist for Vogue, Gucci and Chanel - turned his hand to perfumery and created the brand Boadicea The Victorious in 2007, winning high-profile fans such as Michelle Obama and Kate Moss.

Soon after, he introduce 15 new scents under the Illuminum brand that each contain just eight premium ingredients, and which clearly caught Kate's attention. A friend of Kate's tells me: "We all see her in the papers shopping on the high street, but she's also very savvy when it comes to niche brands because she goes out looking for them. She's not a celebrity with an agent who gets sent everything for free: she enjoys discovering brands for herself and she always gets it spot on."

And White Gardenia Petals was absolutely spot on for Friday's amazing occasion. The soft, light, delicate white floral perfume combines lily, gardenia, ylang ylang, lily of the valley, jasmine and amber wood to recreate the idea of a vase of white flowers swaying in the breeze by an open window. For an outdoorsy springtime traditional British wedding, she picked the perfect scent.

Buy it online at www.roullierwhite.com, call 020 8693 5150, or visit the boutique at 125 Lordship Lane, London SE22 8HU. White Gardenia Petals Eau de Parfum is available in 50ml (£70) or 100ml (£100).