Ariel Gordon Diamond Horizon Necklace in Yellow Gold/White Diamonds: Ready to ship in 1-2 weeks. With five sparkling bezel-set diamonds soldered onto a dainty cable chain, this is the kind of necklace you never have to take off. Really: It’s done in fourteen-karat yellow gold, so you can sleep in it, shower in it, work out in it, whatever.14k gold, 0.075ctw diamond 16" chain.