K18 Pink Gold Necklace I believe the stone is cubic zirconia. There is no carat marking. Markings: K18 Chain: Approximately 45cm Adjustable to approximately 40cm (see image 2) There may be minor scratches from use, but they are not very noticeable and the condition is good. It has been used only a few times. Please understand that this is a used item. There are no accessories such as a box or warranty. (The box is for photography purposes) I plan to wrap it in bubble wrap and ship it in an envelope.