I really think thin gold necklaces are supremely sexy and no one puts this case forward better than Rosie Huntington-Whiteley. I love the under-stated, subtle, delicateness of them and its something you can wear and keep forever knowing it wont go out of style. A classic in my opinion. In the second picture she wears the Spicula Lariat Necklace by Marion Cage.

Spicula Lariat Necklace by Marion Cage

Images from: coolspotters.com & nola.com