Fashion Splurge of the Day : Givenchy Neon Collection Bib Necklace Posted by Claire Sulmers Posted on May 18, 2009 showMessage = false, 2000)" > Copied to clipboard! We at the Fashion Bomb love a bib necklace, and this stunner from Givenchy’s Neon Collection is no exception: Made of crystal and hematite, the necklace offers a refreshing pop of neon color. Get yours for $350 at Macy’s.