Check the listing for details. Prehnite Earrings $70. Condition: New. Listed at 46.44 USD. Prehnite is a stone of unconditional Love, and is known for being able to get to the root of many problems. A very psychic stone, Prehnite strengthens the aura, and when placed on the third eye it gives prophecy, guidance and assists in visualization. This stone also heals the kidneys and bladder.