Loose or Set? The Ultimate Guide to Choosing a Certified Diamond Online

Whenever people talk about diamonds, they often mention terms like” I bought loose diamonds.” This can easily confuse many newcomers. So, if you didn’t understand what Paul meant when he said, “Oh I bought a loose diamond and then had it set,”  then this certified diamonds online blog is for you. 

Differences Between Loose Diamonds and Pre-set Diamonds:  


Loose diamonds are diamonds that are not set in any jewelry piece.

  • You can easily inspect the diamonds, Flaws are easily visible. 
  • You can customize any piece. But this can add up to more chaos and more cost. 
  • Doesn’t add up to the extra cost of setting 


Pre-set diamonds are already placed in settings like solitaires or tennis bracelets.

  • These pieces can be expensive as the cost of settings is included.
  • They save you the time of creating a piece from scratch.
  • These pieces are immediately available, so you don’t have to wait for their creation.

Now that you have a better understanding of what Paul meant, here are some essential questions you need to get answers to:

Are Both Types Certified?

Both loose diamonds and pre-set diamonds can be certified by professional labs, but this depends on the jeweler. Some offer certified diamonds online, while others do not. But, what exactly are certified diamonds?

When considering a diamond purchase, especially for larger or more expensive stones, you’ll likely encounter the term certified diamond.” But what exactly does this mean, and why might it be important?

  • A certified diamond is one that has been assessed by a reputable gemological laboratory, such as the Gemological Institute of America (GIA), the International Gemological Institute (IGI), or the Hoge Raad voor Diamant (HRD). These labs act as independent authorities, meticulously examining the diamond’s qualities according to the 4Cs: cut, color, clarity, and carat weight. They then issue a diamond certificate, a document detailing these characteristics.

There are several advantages to opting for a certified diamond:

  • Verification of Authenticity – A certificate assures you that you’re purchasing a genuine diamond, not a stimulant or other gemstone.
  • Informed Buying Decision: The detailed grading report empowers you to understand that you get the best deal. You can compare prices based on objective quality factors.
  • Protection of Your Money: For larger diamonds, a certificate serves as valuable documentation, potentially increasing resale value and facilitating insurance processes.

Certified vs Non-Certified: How to make the right choice:  

While certification offers significant benefits, it’s not always mandatory. Smaller or less expensive diamonds may not require a lab report, and reputable jewelers can provide assurance of quality. However, for significant peace of mind, a certificate is highly recommended.


  • Even certified diamonds come in varying qualities. The grading report will reveal if the diamond is considered gem-grade or not.
  • Reputable jewelers are key. Regardless of certification, dealing with a trusted professional is essential.
  • The rise of online diamond sales has made certification even more important. It establishes trust and value for diamonds purchased sight unseen.

By understanding certified diamonds, you can make informed decisions and ensure you get the perfect certified diamonds online for your needs and budget.

4Cs of Diamonds: 

The 4Cs—Cut, Color, Clarity, and Carat—are fundamental to understanding a diamond’s quality, but relying solely on them can not be enough. The 4Cs were established by the Gemological Institute of America (GIA) to standardize diamond grading and provide a common language for quality. To know more about 4C’s Check Here:


It’s always helpful to listen to experts. Here are some practical tips from GIA:

Verify the GIA Report with Report Check:

GIA suggests, if your diamond comes with a GIA report, you can check the report details online using Report Check, GIA’s secure database. This lets you ensure that the diamond’s online description matches the grading results. You can even print a copy of the report if it’s available.

Look for a Laser Inscription: 

For extra security, see if the diamond’s grading report number is laser-inscribed on its girdle. Sometimes the diamond is inscribed before sale, or you can request it at purchase. This inscription can include the GIA report number and a personal message or symbol. You can view it under 10X magnification with a jeweler’s loupe, and it’s noted on the GIA report, helping you confirm that the diamond matches its report.


Now that you know how to verify the authenticity of a GIA certificate, it’s time to learn a few more things about buying certified diamonds online. Here are three tips from experts in precious jewels:

  • Choose a reputable place to shop if you are buying diamonds online.
  • Check the photos and videos thoroughly. If something looks suspicious, think twice before buying from that place.
  • Check the reviews. These small pieces of information are enough to know whether you should trust a brand or not.

If you encounter anyone rude, it’s a sign to keep looking for that perfect jewelry piece or diamond elsewhere.

Shop Heirloom-worthy treasures today!

Here’s everything you need to know about buying certified diamonds online. Visit Precious Jewels to purchase the diamonds or jewelry you want.

We have a curated diamond collection. Whether or not you want to focus on the 4C’s, you can still get the diamonds of your choice.

Additionally, you can explore our stunning collection of jewelry pieces. We have both traditional and trendy, modern pieces. 

Initial Jewelry Collection: Check Here

Cuban Jewelry Collection: Check Here

Plus, if you are a fan of documentation, all our diamonds are GIA, IGI & HRD certified. So you can rest assured you are getting the best deal with us. Visit our website today and get the most value for your money with Precious Jewels.

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