Who: Cassie wearing Givenchy nappa and suede sandals
Shop: Luisa via Roma $1,070 / £795.19 / €790
Net-A-Porter US (in black) $1,490
Net-A-Porter International (in black) £1,110 / €1,100
Selfridges (in black) £955
Where: Leaving Martinez Hotel during Cannes Film Festival, France

Credit: Getty