This is an electrical plug. It is made of rhodium plating and genuine Swarovski crystal rhinestones. The chain is a delicate box link with adjustable length. There is the hang tag of the Swarovski swan. The clasp is also marked as is the pendant.
This is VERY sparkly! I had to use a stock photo as mine were too much reflection from the sparkle as you'll see in last pic.
Also this is pre-owned it is unworn. I do NOT have the box.
Measures necklace 14-17"L adjustable. The pendant is 7/16"W x 3/4"T. This is in excellent, vintage condition.