Thank you for viewing. I also thank all my followers. Please consider the chain as a service. It is not 18k. The anchor (clasp) is stamped AU750. It also has a beautiful red agate, making for a luxurious finish. The deep emerald green is very beautiful, and the disc-shaped design will suit any outfit. This is high-quality Hetian jade, a green jadeite (jade) that you should pay attention to for its vibrant green color that spreads throughout. Jadeite size: Diameter 24.7mm Thickness 3.9mm Top length 31.7mm 18k gold stamp (AU 750) Comes with a beautiful dedicated cloth bag. ■Notes As it is a natural stone, there may be some scratches or inclusions. Natural stones have different shapes, colors, and patterns even within the same type of stone, and no two stones are exactly alike. Please understand this beforehand. In general, please refrain from purchasing if you are overly sensitive. Colors may differ depending on how the photos are taken. Please understand. ★Thank you very much.