Nina Ricci Vintage signed faux blue/purple cats eye medallion necklace

In great condition. Clearly stamped on the back of the pendant The links on this necklace have a curve to them so the actual longest length this can be is approximately 17.5". The stone is unknown...at very least it is glass. It is a deep purple with a shimmery tigers eye line through it. Please look at the pictures for details and condition or message me with any questions Chunky silver statement necklace