This is a pre-loved vintage I believe from the 70s, but I am not too sure Christian Dior necklace. All the stones are intact and it is stamped as you could see in the picture. I do not know how to properly clean this type of jewelry so with a good cleaner to shine it up it will be absolutely stunning. It has an adjustable clasp.  It is approximately 17”. I have a non branded box. Please see pictures before buying and if you have any questions please ask. Tysm All sales are final and no returns.