You could telephone your local feed store to ask (Tractor Supply, Rural King, etc.)
Online, I found two hatcheries that might work for you:
https://www.idealpoultry.com/
Look under Colored Egg Layers for Easter Eggers, and Brown Egg Layers for the others. They don't list any called Sapphire Gems, but the "Blue Stars" should be similar.
https://www.welphatchery.com/
Look under Common Breeds for Rhode Island Reds and Barred Rocks, and Rare Breeds for Easter Eggers.
I'm not finding Sapphire Gems, but I see "Blue Plymouth Rock" and "Production Blue" (in Standard Breeds) and "Blue Plymouth Tint" (in Rare Breeds).
Welp has a minimum order of 25 chicks, and a minimum of 5 per breed.
Ideal requires a minimum order of $30 in chicks, and they you have to pay shipping in addition. But there is no minimum number of chicks per breed or per order.
I have ordered from Welp once, and Ideal several times. I was satisfied each time, but I might be less picky than some other people. I am satisfied if most chicks arrive alive & healthy, and if most are the correct breed/gender. Yes, there have been some breeds substituted, but I have always indicated that substitutions are fine. And yes, there have been some mis-sexed chicks, but it's been less than 10% of the chicks, which is within the range of accuracy that hatcheries usually guarantee.
