Wait, really? I had no idea sapphire gems had yellow skin, do they all? I swear mine has white skin…Blue Australorp or blue Andalusian. I don't think it's a Sapphire Gem because it appears to be a white skinned bird rather than yellow skinned.
And my sapphire gem is pretty plump! Now you guys are making me think twice…She could also be a bluebell
(British hybrid that is often labelled sapphire gem or mixed breed? In usa). If she starts to look unusually plump for a sapphire gem and starts laying dark eggs she is a bluebell which has the same exact colour as sapphire gem except slightly better layers of darker eggs and more dual purpose than just eggs