Ariel Gordon Diamond Hex Tennis Necklace in Yellow Gold/White Diamonds: Ready to ship in 6-8 weeks. Crafted from solid 14-karat gold and over 3.4 carats of glittering round-cut diamonds, this tennis necklace is even prettier in person than it is on your screen. The unique hexagonal setting—along with the spacing of the stones—sets it apart from anything else on the market.14k yellow gold, 3.42 ctw diamonds Length: 16"; Width: 4mm Made in USA.