The Sapphire Gem Chicken: The Complete Info Guide

Also known as the Sapphire Blue Plymouth Rock or Blue Plymouth Rock, the Sapphire Gem is all the rage for novelty and specialty chicken fanciers. Scouring the internet for information on this rare variety will most likely lead you down a dead-end road or to the local jewelers’ websites. There is conflicting information on this variety of chicken, but one thing everyone seems to agree on is that this bird is a new favorite.

The Sapphire Gem is not an actual breed of chicken, and not recognized by the APA. Most hatcheries that sell this little gem are vague in their descriptions, and that’s probably because it’s a new variety of chicken. In fact, this chick can only be purchased from a handful of hatcheries, and it even appears as though one hatchery has the name Sapphire Gem trademarked

What we do know about this mysterious chicken is that the Sapphire Gem is a cross between heritage and hybrid chickens and was developed in the Czech Republic. This treasured bird is said to be crossed with a Blue Plymouth rock and a Barred Plymouth Rock.

Since the popularity and excitement over the Easter Egger has begun to dwindle, many chicken lovers are rejoicing at the addition of another fun chicken to add some spice to their flock.

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The Sapphire Gem is a sex-linked chicken variety of chick, which means that their gender can be determined shortly after they hatch just by observing the colors of their feathers. This trait is caused by cross breeding chickens.

Another important note about the bedazzling beauties is that they do not breed true. If you are new to chicken lingo, this means that if you breed two Sapphire Gems, you will not necessarily get another Sapphire Gem. 


If you love exotic colors in your flock, the Sapphire Gem will catch your eye with their lavender and blue feathering.  The roosters are typically blue with a white dot on his head while the hens are mostly blue with a necklace-like ring of gold or grey adorning her neck. There are some that go gaga for these colors, and some who seem to turn up their noses. So, it’s safe to say that reviews on appearance seem to be mixed.

The Sapphire Gem has an upright appearance, similar to that of a Plymouth Rock, due to its genetics and she sports a single comb atop her alert little head. 


The Sapphire Gem is a medium-sized chicken. She won’t tower over your Easter Eggers nor cower under the Brahma. They are a middle-of-the flock size and can hold their own amongst a mixed flock of chickens. 


Large, brown, eggs are the Sapphire Gem’s specialty, and it’s a common misconception that this chicken lays blue eggs because she is often confused with the Sapphire chicken (a small white bird that lays bright blue eggs). 

This little engine-that-can produces year round, and has been said to lay up to a whopping 290 eggs per year! So, as you can see, her purpose is production and is not typically used as a meat chicken. 

Cold Hardy

The Sapphire Gem chicken does well in all climates with reports of withstanding cold winters with grace and without decreased production. As with other single-combed breeds, it is wise to protect the Sapphire Gem from frostbite during the colder months to prevent their combs from falling off near the end of the season. 


Sapphire Gems are wonderful free-range candidates if you like to let your chickens run free. They are excellent foragers and have no trouble finding the tastiest morsels in the yard. While they are a calm variety of chicken, they are also alert and aware of predators, which makes them even better off if they have the run of the yard. 


Raving fans will happily tell anyone who will listen, how incredibly calm and docile this chicken is. Photos are circulating of the Sapphire Gem calmly sleeping in the arms and hands of their adoring owners. They are said to love to cuddle and are one of the sweetest varieties of chicken for the kids.

While this chicken is the new “It Girl” on the scene, there is still little known about the origins and where to obtain her. You can bet that the popularity she has already gained will only continue to grow, maybe even as fast as that of the Easter Egger!

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  1. Ad says

    Do chickens quit laying when it gets so hot outside ? I haven’t gotten any eggs the last 3 days and it finally got in the 100s just this week.Or could there be something else ?

  2. jimmy says

    I have a mixed flock of brown egg layers and the sapphire gem hens lay extra small eggs , pretty to look at but poor quality eggs

    • Rachel says

      Really!? I just got two Sapphire Gems this spring and they were the first to start laying. The first layer was only 4.5 months old when she started and from the beginning (besides two fairy eggs) she’s layed large eggs. The second one started laying at 5 months and she is also lying large eggs even though she’s only been laying for about 2-3 weeks. I was honestly surprised with how big the eggs were in such a short amount of time. I’ve been very pleased with these birds so far.
      That’s such a shame that you haven’t had the same experience with them.

  3. Birdie Mama says

    My sapphire gem is the best bird in our mixed flock (buff orpington, 3 easter eggers), and she’s been laying everyday since 5 months old (big eggs and double yolks ). Anyway she’s a fun smart bird that doesn’t need supervision outside. I know all chickens are different, maybe we just got lucky, but she acts like a pet. I’d recommend the breed to anyone starting out .

  4. Rob says

    I have 10 I hand raised thinking the would be sweet like everyone reported. Nope mine keep their distance don’t want to be around any human once grown. except when I have food but even then keep their distance

  5. Laura Sinkbeil says

    It’s my first year of raising chickens and I got an assortment of 10 different breeds. “Silvie” my sapphire gem is my favorite in the flock. She always approaches me, had beautiful brown eyes, and if I figured out which egg is hers right, then she’s laying large light brown eggs well starting around 22 weeks. She is my largest hen, and probably a little overweight.

  6. PA Breeder says

    Why is Catch a tori farm breeding Sapphire Gem to Sapphire Gem? They are not breeding the Breeders that create the sapphire Gem.

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