An oval yellow green sapphire 5.4x4.8 mm, this small gem weighs 0.59 high quality carats and comes from Africa

This small green sapphire with yellow highlights comes from Africa.
The green color is produced by a blue zoning in a yellow sapphire.
This slightly bicolor sapphire has a bluer tip and a yellower tip.
This olive green sapphire has a medium depth and shines a high quality lot.
This sapphire contains several visible imperfections with the 10X magnifying glass.
I do not see these inclusions with the naked eye.
This oval sapphire measures about 5 mm and weighs half a carat.
Photos taken under fluorescent lighting.