Art Deco Sapphire Platinum ChainArt Deco Sapphire Spectacle Set Chain American, circa 1920 Marquise cut blue sapphires are bezel set in platinum, linked by fine spectacle mounts that let light move cleanly through the stones. The chains geometry and restraint capture the clarity of the Art Deco period. A platinum spring clasp closes the forty inch length. It can be worn as one long strand or wrapped, a picture of quiet glamour.