This is a vintage design mixed materials costume jewelry necklace crafted in the 1950s by Hattie Carnegie with her maker's mark on the back of the piece. (See the pictures). Made of mixed materials, including many different shades of ocean blue, white and blue aurora crystals, poured glass faux lapis, and mixed metals. Excellent condition; definitely a collectible. The design value of this piece, and the eye-catching color, make it dazzling.