My principle dealer out of Africa usually does not offer individual tourmalines that are less than 5 carats in size. He offers the smaller material in lots. The posted bright blue that is going to be just big enough to be a droplet of color was part of one of those lots I bought. The stone appears to be eye clean, but I did have problems with breakage with the lot’s material so the stone might mot be suitable for setting. It weighs .45 carats.