For a day look : a denim blazer, black leather boots, an Alexander Wang t shirt and jeans, complete with Jewelmint jewelry to give the look a more feminine touch.
 
For an evening out : An Acne draped dress with suede pumps and Jewelmint drop earrings and a bracelet.

Simple, classy, understated and oozes feminity : some of the words I would use to describe Kate Bosworth's jewelry line "Jewelmint".
 
The kind of elegant touch you would give to any outfit, night or day, dressy or casual.
 
Also, I can very much picture Kate Bosworth in this outfit.