***RTV***Antique Necklace Art Deco .45 Old European Cut Diamond & Onyx in PlatinumIt doesnt get more Art Deco than this classic necklace. The combination of diamonds, black onyx and platinum is a hallmark of jewelry from the 1920s and 1930s. There is a large Old European cut diamond is bezel set into the center of the onyx pendant which is bordered by diamonds and pearls. The entire pendant is trimmed in crisp milgrain. The platinum chain measures sixteen inches in length.