Our Willow Express necklaces are a fashion trend collection in our costume jewelry line. The necklaces come in gold and silver tone finishes. The core material is brass layered in 18K gold or rhodium. Our necklaces are designer inspired designs. We use only 3A graded CZ's in all of our Willow Express jewelry with a broad range of colored stones. There are earrings and bracelets to pair with the necklaces.