Proceeds from the sale will go to mothers2mothers, a nonprofit organization dedicated to preventing mother-to-child transmission of HIV by providing education and support for pregnant women and new mothers living with HIV

Twelve international designers were invited to pick a personal item or creation to donate to Mytheresa for its upcoming charity auction. The project marks International Women's Day and will raise funds for mothers2mothers. It features donations from such designers as Alessandro Michele, Maria Grazia Chiuri, Sandra Choi, Miuccia Prada, Demna Gvasalia and Silvia Fendi.

Standout pieces up for grabs include a Balenciaga clutch bag designed by Demna Gvasalia, a Dior "Book Tote" featuring Maria Grazia Chiuri's initials and a T-shirt from her first collection for the French fashion house, as well as a vintage necklace from Sandra Choi.

(Related: Weaving New Magic: How Christian Dior's Signature Print Got An Update)

Pierpaolo Piccioli, Jonathan Anderson, Brunello Cucinelli, Kym Ellery and Lucie & Luke Meier have also donated items for the auction.

The full collection of personal objects will be sold on the mytheresa.com website, March 8 to 19. Prints from eight female photographers will also feature in the sale, proceeds from which will be donated to mothers2mothers.

Read more International Women's Day stories here.