Beautiful Art Nouveau on sale Carved Pink Quartz Stick Pin, Silver Tone Metal, Screw on Tip, Antique

This one is so beautiful and I had a hard time deciding whether to sell it or not. The metal is not marked and shows some aging. The tip screws on and is tight. My Presidium gem tester does not register this as glass so I believe it is in the quartz family. This is on sale a unique piece of antique fashion.