Emeralds and GTPs share a similar and spectacular metamorphisis from neonate colors to adult colors. This is one of my favorite parts of keeping emeralds and why I prefer getting neonates as opposed to adults or sub-adults. Emeralds, although it isn't uncommon for northerns to be born green, are for the most part born a red/orange color, with basins being a burnt orange. Between 3-4 months most begin to change and finish around 9-10 months. I understand that GTPs tend to start much later and take longer.
Here are some examples of the change in emeralds.
Northern (LBV) born 8-13-03
After 1st shed (8-26-03)
http://redtailboa.net/pp/data/500/8-...first_shed.JPG
At 2 months
http://redtailboa.net/pp/data/500/medium/10-19-03.jpg
at 4 months
http://redtailboa.net/pp/data/500/12-10-03a.JPG
at 5 months
http://redtailboa.net/pp/data/500/1-11-04d.JPG
at 6 months
http://redtailboa.net/pp/data/500/2-6-04b.JPG
at 7 months
http://redtailboa.net/pp/data/500/3-7-04.jpg
at 10 months
http://redtailboa.net/pp/data/500/6-26-04b.JPG
Craig