Does Blue Nile Sell Real Diamonds? (Are They Fake or Not?)

Does Blue Nile Sell Real Diamonds

Shelling out tens of thousands of dollars for a diamond would make anyone lose sleep at night, especially because we have all heard those horror stories of people finding out their engagement rings are fake. But how can we trust that we are ever getting real diamonds? 

Each Blue Nile natural diamond comes with a GIA certificate, which is the best way to ensure that the diamond you are buying isn’t fake. 

GIA is one of the most highly-regarded gem certification labs, which means they strive to give you unbiased truth about the quality of your stone. A fake diamond will not have a GIA certificate.

Read on for everything you need to know about buying from Blue Nile and avoiding fake diamond scams. 

How Do I Know I’m Buying A Real Diamond? 

The way to know if any diamond you buy is real–whether you are shopping online or at a retail jeweler–is to look at the diamond’s certificate.

If a diamond doesn’t have a certificate, or the jeweler tells you you don’t need a certificate, don’t buy it. 

Because it is very difficult for us to determine the quality of a stone ourselves, and thus to know if we are getting what we are paying for, labs certify diamonds.

You will get a certificate that tells exactly what quality a stone is, based on the 4Cs (cut, clarity, color, and carat). 

This protects the consumer and also keeps jewelers honest. 

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Are Blue Nile Diamonds Real or Fake?

So, you need a certificate from a reputable lab in order to know your diamond is real. Blue Nile prides itself on selling only stones with Gemological Institute of America (GIA) certificates. 

GIA is considered by many in the industry to be the best certification lab in the country. GIA aims to provide unbiased grading of stones and to give the consumer all the info they need to make a wise purchasing decision when buying gems. 

Since Blue Nile sells only these GIA-certified diamonds, you can be sure you are getting a real, natural stone. (Blue Nile does not sell loose lab-grown diamonds at this time.) 

People would lose trust in GIA if they certified diamonds that were fake, so in order for GIA to maintain its lofty spot in the gem-grading industry, they will do an excellent job spotting fake.

A fake diamond will not have a GIA certificate. 

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What Does a Diamond Grading Certificate Include?

In addition to reassuring, you that your diamond is real, a GIA certificate will indicate if it is a natural stone and whether it was in any way treated to improve its appearance.

The certificate will also indicate how it rates on cut, color, clarity, and carat, according to a scale standardized in the diamond industry. 

The certificate will also show you a picture of the stone, its measurements and proportions, and a digital map that will show any inclusions. 

If you get the certificate and you still want to make sure you got what you thought you did, you can always bring the stone and the certificate to a trusted jeweler and have them confirm that the certificate matches the stone. 

Is Blue Nile a Good Place to Buy Diamonds?

Blue Nile has a huge variety of diamonds available for purchase because they do not hold the inventory of diamonds.

Rather, they purchase the stones at the time a customer orders from the site. This means that you can look at pretty much any diamond combination. 

Looking for fancy shapes? Blue Nile has what you are looking for. Want to see how much you might save if you tweak the color, clarity, cut, or carat?

Blue Nile will show you a number of available comparison diamonds so you can see how price and appearance are affected by the 4Cs. 

Blue Nile is a good place to educate yourself about diamonds or to determine what shape and style might be best for you. You can also purchase diamonds from Blue Nile knowing they are quality stones. 

Blue Nile also gets an A+ rating from the Better Business Bureau. 

Are Blue Nile Diamonds Real?

Blue Nile knows that it has to maintain its trustworthy reputation in order to compete in the online jewelry market.

There are a number of online diamond sellers these days, and all of them know that customers are looking for a reliable shopping experience. If they don’t get it at Blue Nile, they can simply go elsewhere. 

For that reason, you can trust that reputable online jewelry sellers (such as Blue Nile) are selling real diamonds.

If you still aren’t sure, have a jeweler check out your stone when you get it–you will still have 30 days to return it. 

Does Blue Nile Sell Cheap Diamonds? 

Blue Nile has diamonds in a range of price points, so anyone can probably find something to fit their budget. You will have to determine what combination of the 4Cs is most important to you. 

Blue Nile and other online sellers almost always beat brick and mortar retail jewelers on price because they don’t have to pay the overhead on brick and mortar stores and employees.

In addition, online sellers don’t have to hold inventory of diamonds like retail jewelers, which allows them to offer diamonds for less. 

These are the reasons Blue Nile is cheaper–not because the diamonds are of lesser quality. If you are looking to get a good diamond for less, check out the reputable online sellers. 

Should I Buy a Diamond Online?

Many online diamond sellers are reputable and sell great stones at lower prices. Getting a GIA or AGS certificate with your stone will ensure that you are getting a good-quality stone and not getting ripped off. 

There are less reputable diamond sellers online, however, and you should educate yourself on how to spot scams. 

If you are buying from a reputable seller, you will be able to see high-resolution photos and videos of your stone, you will have at least 30 days to return and returns will be free, and shipping will be insured. 

That said, some buyers like to see the diamonds up close and even try them on. If that is you, online shopping may not be the right fit. Keep in mind online sites are a great place to do research before you go into a brick and mortar jeweler.

The more you know about diamonds, the more you will save and the more pleased you will be with your purchase. 


Are Online Diamonds Fake? 

There will always be fake diamond scams, both online and in-person; however, not all online diamond sellers are untrustworthy.

Blue Nile and others get very good reviews and are trusted in the diamond industry and among consumer groups. Getting a good certificate is the best way to avoid buying a fake diamond. 

Online sellers are cheaper because they save money on costs, not because they sell fake diamonds. 


James Allen is the leader in online diamond sales. Their imaging technology is the same as inspecting a diamond with a jeweler's loupe. They have the largest exclusive loose diamond inventory online and fantastic prices.

They also have the nicest collection of lab created diamonds online. Save 10% off select lab grown diamonds and 25% off ring settings during limited time sale!


  • No questions asked returns within 30 days of shipment. James Allen will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free International Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisals
  • One free resizing within 60 days of purchase
  • Free ring inscriptions
  • Best-in-class high quality imagery of all diamonds in stock
  • 24/7 Customer Service
  • Best-in-class packaging


Blue Nile sells only real diamonds, and online sellers are a great place to check out the market for loose stones and engagement rings.

Don’t be put off by the fact that online stones are cheaper–it’s because of the business model, not the quality. 



Lindsey graduated with an MBA in 2009. Since then, Lindsey has worked in the retail and consumer service industry as a manager, advisor, and marketer. Lindsey is also the head writer and Co-founder of Lindsey is based in Morgantown, West Virginia.

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