Wicked the Musical Glinda Necklace with Swarovski Crystals

Purchased at the theatre when Wicked came to Toronto many years ago and worn only a couple of times. Comes in original velvet drawstring bag, though the text has rubbed off a little over the years of storage. The blue crystals are Swarovski and I was told when I bought it that it's sterling silver though there is no stamp on it anywhere that I can find. Hook clasp, minor tarnishing. If you have any questions, please ask before purchasing.