This blue tourmaline just stops short of blue green in my yellowish light, but is a great blue under both daylight and incandescent, so it is an Indicolite. It is proud to wear the name and be true blue under reasonable light sources, but its medium blue tone level is a little on the watery side. (It might be bit grayish) Anyway this is a beautiful gemstone. It has some inclusions in the pavilion that I did not notice until I turned it over to check. They are dark and do not flash. This standard round brilliant weighs 3.07 fine carats.