This is a wonderful Art Deco era 1920s marked Germany on clasp unusual open back prong set faceted crystal stone necklace that has a decorative medallion on front and back also. Measures 16" clasped around neck with a 4 3/4" center hang down section that is 1 1/8" wide on the front. Back side hang down panel is 3" by 1 1/8". Features a variety of shaped stones in round, square and rectangular. Under a loupe all I could find is a pinhead tiny microscopic nick on crystal stone on back panel medallion. It is the last center stone and the tiny nick is on the side edge. Not worth me noting. See me holding stone and trying to show nick. You should be pleased with fabulous design and beauty. Beautiful well cared for condiiton. Thanks for looking.