Buying Loose Diamonds: 4 Tips Before You Choose a Diamond

Alicia Briggs | July 23, 2026

The diamond itself is the most important part of any piece of diamond jewelry. When it comes to creating the perfect engagement ring or jewelry design, selecting your very own loose diamond is an opportunity to make something truly spectacular and just for you. Once you’ve selected your VRAI created diamond, you can mount it on select rings or jewelry designs to best show off its brilliance. Below, we’ll cover everything you need to know before buying diamonds, including what they are, and how to find the finest, highest-quality lab-grown diamonds. 

What Are Loose Diamonds

Loose diamonds are simply diamonds before they are set into jewelry. Loose diamonds are fully cut and polished, but they haven’t been set in a ring or turned into a finished piece of jewelry. You can find loose diamonds in all cuts, colors, and carat weights, with varying quality.

What to Consider Before Buying Diamonds

There are four main factors to take into consideration before purchasing a diamond: 

1. Diamond Cut, Color, Clarity, and Carat

If you want to buy a diamond, it’s important to use the 4C’s (cut, color, carat, and clarity) to assess its quality. 

 

First, determine the diamond cut. The cut is the arrangement of each diamond’s facets. It’s what creates your diamond's shine i.e. how your diamond reflects and refracts light. There are three primary cut styles: step, brilliant, and mixed. However, the most important aspect of the cut is the cut quality as this determines the diamond's appearance and quality of reflection. VRAI exclusively offers excellent quality cuts to ensure optimal brilliance. 

 

Next, consider the diamond color. Diamonds are given a color grade based on the absence or presence of color. The Diamond Color Scale uses D-F to indicate Colorless Diamonds, G-J for Near Colorless, and K-M for Faintly Colored. The less color a diamond has, the rarer it is. 

 

Another important factor when selecting a loose diamond is the diamond carat. The carat is the weight of the diamond, not the size. Higher carat weight can indicate how rare the diamond is and also affects the price. Keep in mind that different diamond shapes will affect how the diamond’s carat weight is displayed. A 3-carat loose diamond or a 2-carat loose diamond won’t necessarily look 2-3 times bigger than a  1-ct loose diamond.

 

Finally, consider diamond clarity. Diamond clarity is determined by the number of inclusions a diamond has, most of which cannot be seen by the naked eye. Diamond experts use a diamond clarity chart to measure a diamond’s clarity grade. 

2. Diamond Pricing

When choosing a loose diamond, the price should be evaluated. Loose diamonds make it easier to understand the true worth of the diamond and confirm that the price reflects that. 

 

The price of your diamond will depend on where you bought it, its quality, and the 4C’s. This diamond table can help you find and compare the price of VRAI created diamonds based on the 4C’s. You can use this to easily select a stunning loose diamond within your budget.  

3. Diamonds Certification

When selecting a loose diamond, it’s essential to choose certified loose diamonds. Diamonds are an important purchase so it’s important to understand diamond certification to ensure you are only investing in the best. Diamond certification means your diamond was thoroughly evaluated by a certified gemologist using diamond grading. This determines the value of your diamonds. 

 

However, most diamond grading reports don’t offer a guarantee or warranty for your diamonds. That’s why we provide a GIA-trained Gemologist Grading Report warranted by VRAI. This means that we offer a full lifetime warranty and certification guaranteeing the grade of your VRAI created diamond. 

4. Diamond Shapes

Lastly, you’ll want to consider your loose diamond shape. The shape of the diamond dictates its appearance. This is the most important factor in finding a loose diamond that best reflects your personality and unique style. Some popular loose diamond shapes are:

Loose Elongated Cushion Cut Diamond

Known for its soft curves and elongated shape, the Elongated Cushion Cut delivers beautiful brilliance and timeless elegance. It's a popular choice for those seeking a classic engagement ring with a modern silhouette.

Loose Princess Cut Diamond

This beloved equilateral design is known for its strength and brilliance. Princess Cut diamonds are especially desirable for engagement rings. 

Loose Emerald Cut Diamond

Emerald diamonds are one of the top three shapes for engagement rings, with clean lines that perfectly reflect light. 

Loose Radiant Diamonds

Radiant diamonds offer incomparable shine thanks to their 70 brilliant-cut facets.

Loose Oval Diamond

Oval diamonds are a timeless yet modern shape with a soft silhouette. They are one of the most coveted diamond shapes, often appearing larger than their carat weight. 

Loose Pear Diamonds

Pear cut diamonds have an elegant teardrop shape with a tapered silhouette that helps elongate the fingers.

Loose Marquise Diamonds

Marquise cut diamonds feature an elongated shape with pointed ends that are both playful and romantic. 

Design Your Dream Engagement Ring

You can create a one-of-a-kind engagement ring by choosing from our collection of pre-cut VRAI created diamonds or designing a custom Cut For You™ diamond.  

  

Whether you prefer to start with a setting and find the perfect diamond to match, or begin with a diamond and pair it with your ideal setting, our ring builder makes it easy to create a ring that's uniquely yours.  

  

Browse our available pre-cut diamonds to compare shape, carat weight, color, clarity, cut, and price, then customize your engagement ring with the setting you love.  

  

If you're looking for a specific diamond that isn't currently available, our Cut For You™ service allows you to have a VRAI created diamond cut specifically to your desired shape and carat weight. Choose from more than 30 diamond shapes and enjoy exceptional quality with every diamond we create.  

  

No matter how you begin, you'll have the flexibility to design an engagement ring that reflects your style and story.

Why You Should Choose Loose Lab-Grown Diamonds

Buying lab-grown diamonds allows you to purchase certified, trusted diamonds. Not only are lab-grown VRAI created diamonds real diamonds, physically identical to mined diamonds, but they have a guaranteed point of origin. You can know the full history of your lab-grown diamond, including exactly how it was created and where it came from, which isn’t possible with mined diamonds. 

 

Diamonds created by VRAI make it possible to ensure that your loose diamonds are thoughtfully created with zero-emission.  

 

Plus, choosing VRAI created diamonds allows you to pick from the best quality diamonds at an unbeatable value. We own our production process, which eliminates the middlemen so that we can provide you with the fairest pricing and full transparency.

Shop Diamonds With Our Diamond Experts

Explore the beauty and quality of VRAI created diamonds. Our diamond experts can help you find a brilliant diamond for your engagement ring or fine diamond jewelry design. Book a virtual appointment or visit one of our showroom locations to discover a truly inspired VRAI created diamond

Speak with a Diamond Expert

Receive complimentary guidance, in-person or online.

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