Three Amigas .. Arizona blue turquoise with flecks of nutmeg and pepper in sterling silver serrated bezel setting with stamped border on rolling mill patterned sterling silver crazy 8 wire cuff. 
 
Style A: has a slightly softer rolling mill pattern on the cuff and the stamped border around the cabochon has random stamping
Style B:  Has stronger flecks of pepper on top of cabochon
Style C:  very similar to Style B