Original Art Deco 1920s blue crystal glass and brass pendant necklace

This is a absolutely gorgeous authentic Art Deco (from 1910 - 1920s) blue crystal glass and brass pendent necklace. Art Deco jewelry are now considered antique, since they meet the 100 year age requirement. This one just looks stunning and the central stone shines beautifully. All the parts are original except for the one crystal pointed out in last picture which I think has been replacing the missing original stone. Measures 18 inches and is in excellent vintage condition.