EmeraldTurquoise is green to look at. I have an EmeraldTurquoise Cleartail hen and she is a green colour on top and yellow underneath. I can send you photos but you will need to send me your E-mail address because I have to reduce photos to nearly nothing to send them on this site, my address is
heleng31@optusnet.com.au.
As you know, Emeralds have an obvious yellow underwing patch. The bird you are having trouble identifying looks far too dark to me to be a TurquoiseBlue, from the parents the only other obvious option is Violet TurquoiseBlue but, to be honest, it doesn't look quite like that to me and I have a few of them in Cleartail this season. Kind regards Mike