Okay, this one is an homage to Alaska - my state of origin.  I've spent many nights watching the aurora borealis play across the night sky in shimmering shades of purple, green, and red.  So pretty and definitely one of the things I miss most about my home state!!
 
-Lobster claw clasp
-Stainless steel chain
-Shell, glass, and cat's eye glass
-18 inches long