She went on to make her debut in the Fall/Winter 2004 season, walking in shows for designers such Chanel, Louis Vuitton, Moschino, Missoni and Jill Sander.

Donaldson has notably landed big campaigns for major fashion houses such as Burberry, Gucci, Versace.

In the May 2007 issue of American Vogue, she was featured on the cover with fellow models Doutzen Kroes, Caroline Trentini, Raquel Zimmermann, Sasha Pivovarova, Agyness Deyn, Coco Rocha, Hilary Rhoda, Chanel Iman, and Jessica Stam as the "World's Next Top Models".

[9] Donaldson has appeared on 30 international covers of Vogue which includes the British, American, Italia, China, Australia, Japan, Turkey, Taiwan, Korea, Portugal, Spain and Russian editions.

The other models were Naomi Campbell, Kate Moss, David Gandy, Karen Elson, Jourdan Dunn, Georgia May Jagger and Stella Tennant.