Herkimer diamonds are double terminated (pointed) quartz crystals that have a clear sparkle and large natural facets. My stones have lots of natural facets and flaws, but are chosen to have clarity and shine. Wired by hand into a delicate ring, stack this ring with others for a boho chic look. Stone measures approx 6-7 mm wide. On your choice of sterling silver or 14k gold-filled wire. Sizes 5-8.