Found in the mountains of Sonora, Mexico, these Campitos Turquoise quarter-sized rounds are so pretty.  Paired with a sterling silver ball chain, or red or green African trade beads, any one of them will add a beautiful pop of color to your look.
 
Sterling silver ball chain,  18", sterling lobster clasp.
Red African trade beads, 17", sterling lobster clasp.
Green African trade beads, 17", sterling lobster clasp.
 
One of each is available.