(Cover) - EN Star Style - Sienna Miller has revealed her top accessory pick on a jewellery website.

The British star, who is famed for her gorgeous natural looks and boho style, recently created a personal pick on JewelMint, which is helmed by Kate Bosworth and her stylist Cher Coulter.

Following in the footsteps of Rachel Bilson, who chose a piece for the site in April, Sienna is the latest celebrity curator for the online store.

The stunning star has opted for the silver "Sienna" bracelet which is on sale for $30 and 50% of the proceeds from the piece will go towards the International Medical Corps.

Sienna has expressed her delight at being part of the fashion-forward website.

"I'm so excited to be a part of Kate and Cher's Curator Series for JewelMint," she said in a statement "When she asked me to curate a piece, I immediately picked this bracelet because it speaks to my personal style."

The bracelet will feature on the site until August 14. (C) Cover Media