From the Crystalline Collection. Handcrafted of 14K yellow gold, Jia Jia's necklace features a vibrant tanzanite pendant accented by a band of shimmering diamonds. Diamonds, 0.25 tcw Tanzanite 14K yellow gold Lobster clasp Made in USA SIZE Chain: adjustable 16-20"L. Fashion Jewelry - Fashion Designer > Jia Jia > Saks Fifth Avenue > Barneys. Jia Jia. Color: Tanzanite.