After buying the entire private collection of the late Isabella Blow in 2011, Guinness is returning the favour and auctioning 100 pieces from her personal wardrobe to raise funds for the Isabella Blow Foundation.

The auction will take place at Christie's on June 27, and as we're used to seeing designer's-muse Guinness wearing the most extravagant, and creative outfits that the world of fashion has to offer, there is no doubt that this will be one of industry's most coveted auctions.

The mission of The Isabella Blow Foundation is to continue the work of Blow, who supported emerging talent in the arts and fashion, and a portion of the funds generated by the foundation will also be donated to mental health charities.

Christie's has a history of hosting auctions for some of the world's most important single-owner fashion collections including The Collection of Elizabeth Taylor, The Personal Property of Marilyn Monroe, and Dresses from the Collection of Diana, Princess of Wales.

So Guinness will be in fine company. Now, where's that credit card...