Green violets are a normal wid-type green peachfaced lovebird with the violet factor, seen in the coloring of the rump.
Babies take a while to get the full red face (about 1 year); this is another way to tell you have a young bird (see mature colors below).
The violet factor gives the overall body color a deeper green tone with a bluish hue to it. The tips of the flight feathers are blue. The peachface is a deeper red, darkened as well by the violet factor.
Here’s a video of two young babies, green violet and cinnamon peachfaced lovebirds:
It takes a year for the colors to develop completely. The rump is already a deep violet color, although it is difficult to truly catch this color in a photograph. I plan to keep some of these babies for future breeding since the color is just magnificent in my opinion. Below is an adult male. He is still molting slightly.