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Diamond shapes come and go, but nothing has ever been able to replace the beauty of a round-cut diamond. The diamond with the most brilliance and fire, round-cut diamonds have been at the forefront of engagement ring designs. The number one reason behind the popularity of this diamond shape is its versatility; over 75% of engagement rings are made with round diamonds. So, if you, too, are contemplating getting a round diamond for your engagement ring, this guide is for you. From the pros and cons to the ideal setting for a round diamond, we have included everything that should be on your checklist while looking for a round diamond engagement ring in Hatton Garden, London.

What Is A Round-Cut Diamond?

As the name suggests, round-cut diamonds are circular diamonds consisting of 58 facets. The classic uniform and symmetrical shape and all these facets qualify a round diamond as a brilliant cut. The faceting on round-cut diamonds makes the colour and inclusions appear more prominent than in fancy diamond shapes.

What To Look For When Buying A Round-Cut Diamond?

Why Is The Carat Weight An Important Factor?According to the experts, the number one thing to consider when choosing a round diamond for your engagement ring is its carat size. While the carat weight of most fancy cuts doesn't necessarily correlate to the size of the diamond, that is not the case with round diamonds. A larger carat weight in round diamonds means a bigger diamond, and vice versa.

How Does The Cut Of The Diamond Influence Its Appearance On Your Ring?Excellent to very good is the safest range for round diamonds when determining their cut. Since the cut determines how well-proportioned and sparkly your stone will be, you want to ensure an excellent cut to get the most brilliance.

What Is More Important, The Cut Or The Carat Weight? You need to consider your engagement ring a great balancing act between carat, colour, and clarity. If you lean towards a bigger diamond, you might as well compromise on the colour and clarity of your engagement ring. However, if the brilliance of the diamond is at the top of your checklist, you shall settle for a smaller carat size.

What Are The Ideal Engagement Ring Settings For A Round-Cut Diamond?

Even though round diamonds are one of the most versatile diamond shapes, some settings are more fitting for a round diamond engagement ring than others.


The solitaire setting is one of the most popular settings for a round-cut diamond. It features a single diamond placed on a slender band, allowing all the attention to the centre. Depending on your preferences, you can decorate the band as you please or keep it simple. 


A bezel setting is by far the safest engagement ring setting for your round diamond. In a Bezel setting, the diamond is encased in a metal rim, sitting flush against the metal, making it less exposed than in the case of other settings. However, it can subdue the brilliance of the diamond a bit. 


The halo setting is the second most popular engagement ring setting for round diamonds. The circle or smaller diamonds around the centre diamond create a halo effect, which adds to the brilliance of your centrepiece. Even when you choose a diamond with a smaller carat size, the halo will make it appear larger than its actual size. 


In a pave setting, a series of small diamonds or gemstones closely set together surround the centre diamond. It is an excellent choice if you are looking for a ring that is more glamorous and modern-looking.

Prongs Vs Bezel - Which Setting To Choose For A Round Cut Diamond?

Once you have chosen the diamond for your ring, in this case, a round diamond, the second most important thing is the ring setting. Since the setting affects the overall brilliance and durability of the ring, let's take a closer look at which one is best for a round-cut diamond. 

Prong Setting 

The prong setting involves using several thin, pointed pieces of metal ( called prongs) to hold a diamond in place. It allows more light to reach the diamond, aiding in more brilliance. It also lifts the diamond off the finger, allowing it to float above the band. However, the only drawback with a prong setting is that it can become loose over time due to excessive wear and tear, which can cause the diamond to fall out. 

Bezel Setting 

The Bezel setting, on the other hand, consists of a metal rim or band that encircles and secures the diamond. While the diamond is extremely secure in a bezel setting, you will have to compromise on its brilliance. The protective rim prevents light from reaching the diamond, thus making it look relatively small and less brilliant.

Why Are Round-Cut Diamonds So Expensive?

One reason round-cut diamonds are so expensive is the amount of material lost during the cutting process. A round diamond is cut in a specific pattern to achieve 58 facets, which are small, flat surfaces cut into the diamond. The diamond yield, which is the material lost during the cutting process, is as high as 50% for round-cut diamonds. Another important reason is the high demand for round diamonds. As a popular shape for engagement rings and wedding bands, the constant demand for high-quality round diamonds also adds to the hefty price tag.

Buy Your Dream Round Diamond Engagement Ring At Allure Jewellers.

With all the above insight into the various aspects of round diamonds, you can comfortably choose the most fitting ring for your partner at Allure Jewellers. Explore our vast collection of unique round diamond rings to find the one that best suits your and your partner's preferences.