Art Deco Natural Black Opal Stick Pin 14K Yellow GoldThis gorgeous stick pin comes from the Art Deco period(1925) and is made in 14k yellow gold with a natural, un treated, black opal center. The natural black opal is a . 60 carat cabochon cut opal, with bright streaks of red(very rare) and green, that creates an intense play of color. The 14k yellow gold setting has a soft hue that accentuates the fiery opal and makes this pin pop against any color. The exceptional black color, design and materials