This is a sweet piece of Czech jewelry. The necklace is all glass. The center is the two shades of green on one side and dark green on the other so you can wear the necklace either way. I love the comma shaped beads along the chain. Although it is not signed there is no doubt about the maker. It measures about 18 3/8" long. Please look at the photo of the spring ring clasp. It is secure but you can see the threads from the necklace. Necklace is in excellent condition.