18ct Yellow Gold Diamond Chain Link Drop Necklace, RONP This stunning and contemporary necklace has been finely crafted from 18ct yellow gold and features a chain link style drop pendant, beautifully embellished with numerous sparkling brilliant cut diamonds, set into an oval 18ct white gold pendant. Supplied on an 18 inch 18ct yellow gold chain with a classic bolt ring clasp, this elegant and modern diamond set necklace is designed perfectly to add a touch of luxury to any look.