Our crystal necklaces are the perfect casual necklace to bring good energy about your day. These fun necklaces can be worn by themselves or layered with other necklaces to add even more excitement. Herkimer diamond crystal bead 18" sterling silver box chain hand stamped sterling silver hummingbird charm Herkimer Diamond - Some say it is the most powerful of all crystals, making it a powerful pair with any other crystal. Herkimer Diamond is like a reset button, it helps clear your mind, body and spirit to let go of all past pains from this life, and past lives. It harmonizes your brain and aura, and brings a deep understanding of life and all that is. It helps to release fears, anger, and resentment so that you can access and expand your source consciousness.