This one of a kind strand of Paraiba Tourmaline Plain Trillions are from the state of Paraiba in northeastern Brazil. These gems have an extremely rare coloring due to their copper content, the gemstones measure approximately 5x6mm to 8x7mm in size, the polished gemstones have a vitreous luster, the rare component of these beads is their coloring which is completely natural showing light to dark hues of greenish blue, pink, blue/pink bi-color, yellowish green, and violet-blue. These Paraiba Tourmaline are the top of the line for rarity in the Tourmaline family, and this strand has a consistent quality in these Tourmaline beads.