Wire-wrapped Blue Lapis or Clear Quartz Pendant necklaces. Comes with a 7" black cord chain. 
Clear Quartz is a transmitter stone and is great for healing and spiritual growth. Lapis is associated with strength and courage, royalty and wisdom, intellect and truth. It's a great protection stone for warding off the evil eye.
Amythyst is great for relieving stress, headaches, and anxiety. It's good for psychic development too.
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