This very unusually constructed bracelet is a slide bracelet. It will fit a small to extra large wrist depending on how wide you open the single chain.The chain moves through a channel behind the focal point. It's a very clever design. 

The focal point flower / leaf is green enamel with garnet accent. There are no chips or cracks in the enamel. The white spots in the close-up photo are camera glare. This bracelet is in very good to excellent condition There are no marks or hallmarks.