Indeed the most powerful of all gemstones is the Herkimer Stone. A high energy seeker type of crystal that holds spiritual energy. What a stunning stone these are! Herkimer Diamonds have been known as the gateway to the universal life force that not only enhances the spiritual energy, but also acts as the physical and emotional healer. A massive healer stone with such an abundance of energy. Traditionally Herkimer Diamonds are the birthstone for April and 60th Wedding Anniversary gemstone.