Art Deco Style Platinum and Diamond Long ChainArt Deco Style Platinum and Diamond Chain Vintage longuard chain in platinum lozenge shaped links are paired with spectacle set single cut diamonds. The necklace can be worn on its own or hung with a pendant. In a deco design but with more modern origins. The necklace measures 40. 25 inches long, long enough to wear doubled or full length. In the image, paired with an Edwardian era diamond starburst pendant.