Minimal+Pretty, four Herkimer Diamonds float on a delicate chain, making this an everyday necklace or a favorite new layering piece. Herkimer Diamonds are gorgeous double terminated quartz crystals formed 500 million years ago in Herkimer County New York. These stones are the perfect mix of pretty and gritty! Their naturally occurring faceted geometric shape + their exceptional clarity give this stone their "diamond" name. If you would like to customize with a different number of stones please add in the notes section at checkout.