Are Blue Nile Diamonds GIA Certified? (Review + More)

Are Blue Nile Diamonds GIA Certified

Do you know if Blue Nile diamonds are GIA certified? Well, you are at the perfect place to find the answer to such a question.

Buying a diamond is a huge investment–possibly the biggest one you will make in your life so far. You certainly want to buy something that will please your sweetie (or yourself!), but it’s important to get educated so you can get the best quality, save money, and most of all avoid scams. 

Yes, All natural Blue Nile diamonds are certified by the Gemological Institute of America (GIA), which is considered to be one of the leading labs in the diamond industry. 

Yes, buying a diamond on the internet is a little scary, and you should beware of scam sellers and low-quality diamonds marked up to astronomical prices.

Read on for everything you need to know about Blue Nile diamonds and diamond certification. 

Are All Blue Nile Diamonds Certified? 

Blue Nile was one of the first online diamond merchants, and part of its model was to get consumers to feel safe buying expensive diamonds online.

One of the ways it went about doing this was to make sure that consumers understood that they could trust Blue Nile to sell exactly what the consumers thought they were getting, and to sell high-quality stones.

In order to gain trust, Blue Nile made sure that all diamonds sold were certified by one of the most-respected diamond labs (GIA and AGS). These days, all natural Blue Nile diamonds are certified by the GIA, which remains one of the most respected grading labs. 

Blue Nile sells some jewelry with lab-grown diamonds, which are not graded, but it does not sell loose lab-grown diamonds. 

Read also >> Are Blue Nile Diamonds Good Quality? (All You Need to Know)

Read also >> Blue Nile Return Policy: 5 Reasons Why It Sucks & 5 Reasons Why It’s Great

What is Certification?

When you buy a certified diamond, you will receive a certificate from the grading lab, which states that an independent, trained gemologist has evaluated the diamond according to a globally agreed upon scale for cut, color, clarity, and carat (known as the 4 Cs). 

The certificate will also provide a plotted diagram of the stone, showing any inclusions, and a map of the stone’s proportions and measurements. 

Why is Certification Important?

Unless you are a trained gemologist with sophisticated equipment, you will have to trust that you are getting what you are paying for in terms of the 4Cs.

(That said, you should absolutely buy the diamond that is prettiest to you, regardless of what a lab says is high quality.)

A certificate provides the closest thing to an unbiased review of the quality of a diamond. When you get a certificate, you can trust that when you are paying extra for a near-colorless stone, or a certain carat weight, or no visible inclusions, you are actually getting the stone you think you are. 

Certificates also help verify your identity if you need a repair or have an insurance claim. Some insurance companies will require that you produce the certificate when insuring your jewelry (which is a very good idea).

In addition, if you ever want to resell the stone, you will get closer to its real value if you can produce the certificate along with the sale. 

  • Save an Average of $350* on Lab-Created Diamonds
  • James Allen is the leader in online diamond sales

What is the GIA?

GIA has been around and grading diamonds since the 1930s and is still considered by many to adhere to the strictest standards when grading diamonds.

GIA tests all stones to determine if they are natural stones, and also will disclose if any gems are treated.

GIA trains its own gemologists to its high standards, and many jewelers trust that the GIA is providing the most trustworthy and unbiased certifications. 

GIA also performs gemology research, including improving lab technology and instruments, and trains jewelers and other industry professionals. 

Is GIA the Only Diamond-Grading Lab?

No, there are several labs that grade diamonds. GIA and the American Gem Society (AGS) are generally considered to be the most reliable.

In the US, you may also see gems graded by IGI, which is regarded by some as a good lab but many jewelers prefer GIA or AGS. 

Many lab-grown diamonds are certified by IGI, but lab diamonds should meet the same standards as natural stones. 

Is it Safe to Buy a Diamond on the Internet?

Internet diamond sales have taken off since the early days of Blue Nile, and now there are several reliable companies in the market in addition to Blue Nile.

One key to buying a stone on the internet is the certificate–don’t buy one without a reputable certificate or you won’t know what you are getting. 

James Allen is another favorite and sells lab-grown diamonds in addition to natural stones. 

Brilliant Earth sells certified conflict-free diamonds as well as lab-grown, or check out Ritani, VRAI, or Clean Origin to choose a diamond and design a ring. 

Many of these reputable sellers have high-resolution 3D imaging of each stone, so you can see it close up even if not in person.

If you don’t like it when you receive it, you can always send it back for free within around 30 days (check the return policy for whichever company you are using). Don’t worry–shipping is insured. 

You can also chat with their gemologists and jewelers to get information and suggestions about what stone to buy. 

Read also >> Where to Buy GIA Certified Diamonds (11 Best Places)

Read also >> Are Blue Nile Diamonds Legit? (All You Need To Know)

Is Blue Nile Cheaper?

Buying a diamond on the internet is almost always going to be cheaper than buying in a brick and mortar store.

Blue Nile is competitive in price with other online diamond sellers, and you should look around for the best deal on your ideal stone. 

In addition to being affordable, Blue Nile has access to a huge inventory of diamonds, in a wide variety of shapes and sizes.

If you know exactly what you want or are just starting your shopping research, Blue Nile is a good place to start since you can see an example of just about anything you can buy. 

In addition, Blue Nile will show you a number of comparison diamonds, so you can learn about the 4Cs and how each one affects the price.

Since Blue Nile has so many diamonds, it can show you exactly how much you will save by tweaking color, clarity, cut, or size, and will also show you the differences in the appearance of the stone. 

Diamond Certification FAQ

Does Blue Nile Sell Real Diamonds?

Yes, the fact that all natural stones are GIA certified is the best guarantee we can have that the diamonds are real. 

Blue Nile does sell some lab-grown diamond jewelry, though not loose stones or engagement rings. The lab-grown diamonds do not have certificates. 

Is Blue Nile a Reputable Company?

Blue Nile gets good reviews for diamond quality, customer service, and reliability.  Blue Nile offers GIA certificates and 3D images of each stone.


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


If you are asking whether Blue Nile diamonds are GIA certified, good for you! That means you are getting educated about your diamond purchase and want to get the best diamond money can buy.

 Plus, if you insist on that certificate, you won’t get scammed or end up with a diamond that is later identified as a fake (yes, this happens). 

Online diamonds are a great way to save money and compare options, though you will need to get the certificate to rest assured that the diamond you just spent two (or three, or five, or ten) months’ salary on is actually what you think it is. 



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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