Black Tourmalinated Quartz Faceted Free shape with Sterling Silver Bezel measures approximately 10x10mm to 14x15mm in size not including the ring at each end, the jumpring measures approximately 1.5mm in interior diameter, the colorless crystal quartz body has fine black needles throughout creating lighter or darker appearances due to needle abundance, each gem has its own unique shape, the gems show slight internal characteristics, and the gems are set in a Sterling Silver 1.5mm wide bezel complimented by soldered closed jumprings on each side of the stone.