London - Her dresses sell out within hours of her wearing them; her hairstyle is copied in salons across the country.

But all those seeking to emulate the Duchess of Cambridge’s style no longer have to pore over photographs. They can simply consult Vogue’s complete guide to Kate.

From the diameter of her curls to the number of teeth she shows when she smiles, nothing has escaped the fashion bible’s scrutiny.

Ahead of her 31st birthday, the magazine has analysed outfits the duchess has worn since her marriage to Prince William in April 2011, plus a handful from before the couple’s engagement – 100 in total.

So to be a true copy Kate, you should wear blue, ensure the average drop of your earrings is 33mm – and carry your clutch bag with both hands. - Daily Mail