This is a vintage mixed materials costume jewelry necklace made 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 vintage design value of this piece, and the eye-catching color, make it dazzling. This is a perfect gift for anyone who adores vintage design, is collecting Hattie Carnegie pieces, and loves the color blue.