Hoorsenbuhs Open-Link 18K Gold Necklace with Lock in Yellow Gold: Made to order. Please allow 2-3 business days for shipping. Even minimalists will get behind this exquisite, 18-karat yellow gold tri-link chain necklace. It has three king-sized links joined together by teeny diamond-encrusted connectors, which is beautifully echoed on the toggle. But what’s really special is the detachable lock charm sitting front and center.18kt yellow gold, white diamondChain length: 18; Charm length: 1Detachable lock charmMade in USA.