L'Wren Scott claims her attention to detail makes it difficult to shop.
Breaking news: L'Wren Scott found dead in New York after apparent suicide.
The former model turned fashion designer - who is dating Rolling Stones frontman Sir Mick Jagger - claims her habit of noticing every single flaw makes her reluctant to purchase items when out shopping.
She told the Daily Telegraph newspaper: ''I'm not an easy customer my attention to detail could probably drive you mad.''
The 46-year-old star changes her outfits numerous times throughout the day and claims her obsessive behaviour stems back to when she was a teenager.
She recalled: ''It drove my mother crazy. She made this rule that every time I changed I had to hang everything up. It made me incredibly organised and methodical. My eye still always goes toward the single flaw.''
L'Wren's collections are designed from a fashion studio based in London and she says her stringent rules regarding clothes even apply to her staff, whose outfit choices are limited to black and white.
She explained: ''Everyone who works in my studio knows not to wear colour - it's too distracting when you're working on a collection.''
Meanwhile L'Wren has collaborated with Banana Republic to create a capsule collection of over 50 pieces, which range from sequinned party dresses and bejewelled cardigans to tailored jeans.