Is this a Sapphire Gem?

[kristinhennifer]

These two are 4 weeks old. I am posting several photos of two sapphire gems I purchased at the same time from Tractor Supply. The lighter color one vs the very dark one. The comb difference as well.
Do you think the dark one could have been a different breed they didn’t have posted?

 

[BackyardinWales]

Sorry, I can't help with the breed. If they were mine, I'd be concerned they were both males. I don't know, but I hope I'm wrong.

 

[FuzzyDinoNuggets]

They both look like sapphire gems, they can be different shades of blue. The darker one in the first picture is a boy and the lighter one is a girl. Also, the last picture is a boy.

 

[Ajp23]

The lighter one looks like my sapphire olive Eggers, it has a crest. Adorable birds!

 

[rural mouse]

Blue does odd things. Blue bred to blue has a 50% chance of throwing blue chicks, 25% chance of black and 25% chance of splash. The blue color happens when a bird has 1 black color gene and 1 DILUTED black . The diluted gene makes the black turn blue. When a bird has 2 copies of the diluted gene, it comes out splash. That looks like a white bird with inky fingerprint smudges on random feathers. Some are blue and some are black.

As such, both chicks can be the sapphire gem lineage with 1 being black. The black will not produce blue offspring unless bred to blue or splash birds. The blue bird can, but not every offspring will be blue.

The black chick does seem to be a roo due to comb development at this point. The blue one is undetermined yet.

 

[kristinhennifer]

The lighter one looks like my sapphire olive Eggers, it has a crest. Adorable birds!

Now you have me wondering if the two in question are actually my sapphire olive eggers. I got two gems and to oliver egger gems. LOL