Art Deco Carnelian Drop Necklace Original Enameled Chain. This 1920s Czech drop necklace is an amazing find. It has five swirled carnelian agate balls and large carnelian agate drop. The original chain is enameled in a pale orange. There is a total of 16" of neckline. The drop is 1.75 inches long and 1.0 inches wide at the bottom. The necklace closes with a secure spring loaded thumb clasp. This entire piece is set in gilded brass. If you need a necklace extender, please ask. This Czech necklace has been in our collection for over 20 years. This Art Deco necklace is in very good condition.