This stone will not brook with anything to do with color shifting or changing. It has a pure 24 karat, golden heart. It also appears to be eye clean and with fine crystal. Since it does not have even a drop of brown in it nature I would not call it a dravite, though the trade does not have a varietal name for golden yellows without brown. This may have change recently with the advent of “canary” tourmaline from East Africa that is promoted as a pure yellow with minimal overtones of brown and green. This beautiful tourmaline weighs 1.34 carats.