A popular style of jewelry from the mid-1910's until the mid-1920's originating in Paris, France. Art Deco pieces are characterized by geometric lines and angular shapes, zigzags, bold colors, molded or faceted Czech glass beads, plastics (like celluloid or Bakelite) and chrome. Colored stones were utilized more, and the opaque stones such as jade, onyx and coral were set in geometric shapes. Sleek animals such as Borzoi and Greyhound dogs were featured in some designs. It started out with relatively delicate designs, and progressed to a more bold and blocky style called Art Moderne.