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Asha Simulants vs. Lab Created Diamonds



You may have heard about something called an Asha simulant diamond, and you may be wondering exactly how Ashas differ from lab created diamonds. We hope that informing you about some of the key differences in these products will demystify the often muddled topic of diamonds (mined or lab created) and simulants.
What is an Asha Simulant?

An Asha simulant is a diamond look-alike that contains an upper layer composed of the carbon atoms found in a natural diamond. In the same family as other simulants like cubic zirconia (CZ) and moissanite, Asha simulants are designed to have a look and feel that approximates authentic diamonds and their unique upper layer lends more sparkle than other simulants. However, since their compositional material is fundamentally different from naturally mined and laboratory made diamonds, they are easy to identify as a simulant. As with other simulants, Ashas appeal to some customers because they are less expensive than diamonds. Other couples prefer to select an authentic diamond (either naturally mined or laboratory created) they can afford now, with the option of upgrading later.
What is a Lab Created Diamond?

diamond insta capture

A lab created diamond, sometimes called a cultured diamond, contains the same chemical crystal as natural diamonds and exhibits the same fire, scintillation, and sparkle. The diamonds in our lab created diamond collection are produced using a technological innovation that yields diamonds of exceptionally high quality and purity. Only the top two percent of natural diamonds can compare. Additionally, lab created diamonds do not require any diamond mining, making them a nice choice for those seeking to minimize the environmental impact of their jewelry purchase.


How do Asha Simulants Differ from Lab Created Diamonds?

It is important to distinguish between diamond simulants like Ashas and laboratory diamonds like those newer to the market at Brilliant Earth. The laboratory made diamonds in our collection are chemically, optically, and physically inseparable from naturally mined diamonds.  They are real diamonds. This is not the case with Ashas or other simulants, which seek to approximate the appearance of diamonds, but are in fact made—and composed—quite differently. How this manifests can be a variance in sparkle or shimmer, light refraction, color, and/or longevity of the stone itself.
How Do I Decide Between a Simulant and a Lab Created Diamond?

Ultimately, how you design and select an engagement ring is a deeply personal choice. The wealth of information available to you is a blessing and a curse! Our goal is to help you cut through the confusion and understand your options so that you can feel good about your purchase. If you want more direction, consider taking a look at our engagement ring guide, and if you are looking for one-one-one guidance, please think about a personalized consultation.  Together, considering your budget, your personal style, your lifestyle, and your values, we can create a ring that is beautiful and everlasting.

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Comments (15)

B. Earth Says:
July 19th, 2016 at 11:25 am

Hi Marla,

You can view our diamond ring settings here: You may be especially interested in our Petite Shared Prong Diamond Ring or our Lissome Diamond Ring. Our custom jewelry specialists would love to learn more about your custom ring request for a setting with a clasp. Please reach out to us using the live chat on our website or by calling us at 1.800.691.0952. Thanks for your interest!

Marla hollander Says:
July 18th, 2016 at 8:32 am

I am interested in a1 to 1.5 karat Diamond. I would like it to be surrounded by gold (18k) and a band (5mm) to compliment this stone, with diamonds also. I would also like to know if you make settings that have a clasp instead of a band? I have terrible arthritis in my hands and could not fit a normal ring. Thanks in advance,
Marla Hollander

B. Earth Says:
April 18th, 2016 at 10:48 am

Hi Susan,

You can find 1 and 1.5 carat princess cut diamonds using our diamond search ( to get the exact price, as diamond prices vary. Please call us at 1.800.691.0952 or use the live chat on our website for further assistance. Thanks for your interest!

Susan Says:
April 18th, 2016 at 3:30 am

Can I get price for a 1 carrot and 1.5 carrot princess cut loose diamond to replace my asha diamond?

B. Earth Says:
April 7th, 2016 at 1:28 pm

Hi Balaram,

You can learn more about lab and natural diamonds here: Thanks for your interest!

Balaram Vysetti Dr Says:
April 6th, 2016 at 10:03 am

I want to know more about the differences between lab and natural diamonds.

B. Earth Says:
February 19th, 2016 at 12:05 pm

Hi Bill,

Our jewelry specialists would be happy to assist you and discuss further options. You can get in contact via email (, live chat on our website, or call at 800.691.0952. Thanks for you interest in Brilliant Earth!

bill wolbach Says:
February 18th, 2016 at 8:26 pm

would like to know more options. Thanks bill

Bekah Says:
September 19th, 2015 at 9:12 pm

I also am interested in an alternative to a diamond I’ve been looking at moissanite and have seen good things about the forever brilliant moissanite but it makes me nervous not knowing if it will last color and strength wise and how does the asha compare to the real diamond I don’t mind a little more “fire” I just don’t want one that will look yellow or green in sunlight

Amber Boyd Says:
August 19th, 2014 at 12:37 am

I LOVE my Ashadiamond and no one has ever pointed out that it’s not a genuine mined diamond. Just wanted to throw in a good review. Maybe they got so many complaints they fixed their previous issues.

Teddy Shoeman Says:
February 25th, 2014 at 4:54 am

Good article. I definitely appreciate this site. Keep it up!

bill Says:
October 11th, 2013 at 11:34 am

I bought an engagement ring off the Asha website. After 11 month I had to send it back and pay 135$ to get the stone replaced. The scratch was huge and my fiance was so embarrassed, as was I. They didn’t cover any of the cost and were not surprised how easy they scratch. Their services was 48hr slower then the instant response you get when trying to buy a ring from them. I wouldn’t buy from ever again.

Mrs.Carter Says:
September 17th, 2013 at 10:47 am

Hi there,
I am right there with you Lauren! I have found Moissanite to be yellow which I dislike. I am interested in what B. Earth had to say plus I would love to hear what alternate diamond won your heart.

B. Earth Says:
July 2nd, 2013 at 11:47 am

Hi Lauren,

Our jewelry specialists would be more than happy to advise you on your options and answer your questions in more depth via email ( or at 800.691.0952. Thanks for your interest!

Lauren Enslin Says:
July 2nd, 2013 at 7:50 am

I am interested in in an alternate diamond. I want to know the options available and their characteristics. in partcular, i want to know the hardness on the Mohs scale of hardness, the color comparison, according to the scale of diamonds color rating: D throuh J and the brilliance and luminosity. I have ordered a Moissanite and am disappointed with the color. It looks too yellow and I want to return it. I now have been told that there is a Forever Brillliant Moissanite, which is more expensive and whiter. Since then, I learned that there is a Asha , Nexus and Diamond lab created, from a natural diamond.

Asha Simulant Diamonds vs. Lab Created Diamonds | Brilliant Earth