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Can You Tell Which Diamonds are Lab Grown?



Although grown by scientists instead of created in the earth’s crust, lab diamonds are absolutely real diamonds—they display the same chemical and optical properties as natural diamonds.

Even expert gemologists can’t tell the difference, but just for fun we’re offering you the chance to guess. Each of the sets of engagement rings on this page includes one ring featuring a lab diamond and one with a naturally mined diamond. See if your instincts can determine which is which. Learn more about lab diamonds.

Classic Round Lab Diamonds


If you’re looking for a lab grown diamond in a classic round brilliant cut, you’re in luck, because we have an expansive selection of round lab diamonds. When the process of growing a diamond was first invented labs were only capable of creating small diamonds, but today you can purchase lab diamonds up to three carats. (The lab diamond is the one on the right.)

Lab Diamonds in Fancy Shapes & Colors


Lab diamonds are also available in fancy shapes including emerald, oval, cushion, radiant, princess and asscher. If you love colored gemstones, consider a lab created colored diamond in a fancy shade of yellow or pink. (The lab diamond is the one on the left.)


Lab Diamonds with Natural Accents


If you’d like your ring to feature both a lab diamond and naturally mined diamonds, you can have a lab diamond set in a ring featuring natural accent diamonds. (The lab diamond is the one on the right.)


Impossible to Distinguish

If you couldn’t tell the lab diamonds from the natural ones, we’re not surprised—and if you could you’re just a lucky guesser! Lab diamonds are created in high-temperature, high-pressure chambers that reproduce the conditions in the earth’s crust. The result is carbon atoms arranged in the structure of a diamond crystal and diamonds that are every bit as magical as the ones created naturally millions of years ago and mined today.


Attractive Prices

Lab diamonds usually cost about 30% less than natural diamonds of comparable size and quality. But these diamonds are every bit as luxurious as their natural counterparts, since their dazzling beauty and durability are the same. It is important to know that there’s a big difference between lab created diamonds and diamond simulants, such as cubic zirconia and moissanite. These simulants are not made of the carbon crystals, and do not possess the same brilliance as diamonds. For that reason, simulants sell at much lower prices than lab created diamonds.


Final Thoughts

Browse our collection of lab created diamonds, and if you don’t find what you’re looking for do not hesitate to contact us and we can help you source your ideal diamond.

Do you wear a lab diamond engagement ring, or would you? Let us know on Facebook or Twitter, or in the comments section!


Lisa Says:
October 8th, 2015 at 12:34 am

Question from this site: Do you wear a lab diamond engagement ring, or would you? Let us know on Facebook or Twitter, or in the comments section! – See more at: http://www.brilliantearth.com/news/can-you-tell-which-diamonds-are-lab-grown/#sthash.557CkVfv.dpuf

My Answer: After reviewing and educating myself somewhat about Natural Diamonds vs Lab Grown Diamonds, I can say with great enthusiasm that YES I WOULD AND I’m going to browse now! I love you Tony L. Kennerly, #LOVEOFMYLIFE #we’re getting married!!!!”

cary moore Says:
October 25th, 2015 at 6:04 pm

I would like to see 4 or 5 carat lab diamond rings on your site along with the prices. Thank you.

B. Earth Says:
October 26th, 2015 at 11:17 am

Hi Cary, you can view the carat weights and prices of our diamonds here: http://www.brilliantearth.com/loose-diamonds/search/. Our jewelry specialists would also be more than happy to advise you on purchasing a diamond engagement ring and answer your questions in more depth via email (http://www.brilliantearth.com/contact/) or at 800.691.0952. Thank you for your interest!

Rosabella Says:
December 26th, 2015 at 3:56 am

Was able to distinguish fake from real each time. The lab fake looked murky and like death was in it

Kimmie Says:
February 2nd, 2016 at 10:33 am

All diamonds are stunning…natural AND lab grown!

LeeAnn Says:
February 2nd, 2016 at 6:37 pm

All of these rings are stunning and I could not tell them apart. I have a 1.8 ct lab created diamond engagement ring. It’s so beautiful and a fraction of the cost of a mined diamond ring. I told my fiance not to spend so much more on mined diamonds when these are real and just as beautiful.

Orlando Says:
May 4th, 2016 at 5:15 am

How to find her ring size

B. Earth Says:
May 4th, 2016 at 11:02 am

Hi Orlando,

You can find our guide to ring sizing here: http://www.brilliantearth.com/ring_size/.
You may also be interested in our guide to finding her ring size without her knowing: http://www.brilliantearth.com/news/how-to-find-out-her-ring-size-without-her-knowing/.
Thanks for your interest!

Lorraine Says:
July 14th, 2016 at 6:15 pm

The felicity diamond ring is beautiful and my first choice as an older woman.

ro weir Says:
February 21st, 2017 at 9:26 am

canu tel the real diamonds fron thelab stones

Devils Says:
May 8th, 2017 at 2:11 am

I got 2/3 right because synthetics are brighter

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