Green Tourmaline Heart Briolettes measure approximately 20x20mm to 23x23mm in size, have a glass like luster, show a transparent light to dark green hue, the natural crystal shape has been cut in a symmetrical heart shape, gems are cut thickly for a more saturated color, the gems match in color and quality the dark olive green tourmaline slices, and each Tourmaline bead is unique on this strand.