Inside lighting displays an intense bluish green color.   Outside lighting shows strong bluish green slightly less intense.   Very high quality stone here for both color and clarity.  Totally symmetrically cut stone.   
I took photos both inside and out and will label all.   The video was taken in outside natural shaded lighting for accurate representation of the stone.
Certificate only minor colorless oil treatment with is an accepted practice and 99% of all emeralds are oiled.  

Here is an emerald grading page to judge the stone for yourself.   
https://natural-emeralds.com/2018/05/02/how-to-grade-emerald-gemstones/