The cool thing about these earrings is that they are in very close proximity to your nose- therefore when you apply your oils to the lava rocks, you can really take advantage of the effects throughout the entire day.  
 
The amethyst in these earrings represent the 7th Chakra (Crown Chakra), which is responsible for your higher consciousness.  Here you become in touch with your psychic self.  Amethyst as a stone does the same thing, these subtle choices in design definitely harmonize.  
 
Get one to match a chakra bracelet, or buy all 7 for each of the chakras, and base what you daily wear on the chakra you need to work on!  The lava rock bracelet and earrings make a fantastic gift!