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Your Ultimate Guide to Picking the Perfect Lab-Grown Diamond Cut

Lab-grown diamonds continue to gain momentum as a great choice for a stunning gem. These stones are simply immaculate. Some credit for these fascinating stones needs to go to lab-grown diamond production methods, which have evolved over the years. There is a beautiful variety of high-quality stones on the market today. Unlike moissanite or simulated diamonds, lab-grown diamonds are very durable (like Natural Diamonds) and come in a diverse range of colors

Several factors give laboratory-created diamonds a unique appeal. They are commonly known as the 4 Cs (carat weight, color, clarity, and cut/shape), but we like adding a fifth C: cut/performance. While cut/shape, clarity and color are important, the cut/performance emerges as a paramount factor in determining a diamond's allure, which is why we include our fifth C. It’s that important. 

Let’s explore lab diamond cuts and shapes and unravel the complexities of lab diamonds. 

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Why Is The Lab Diamond Cut Important?

When it comes to diamonds, the cut takes center stage in defining a gem's visual appeal. A well-executed cut maximizes light reflection, creating a dazzling look that attracts enthusiasts. If you are looking for the right lab diamond, understanding the significance of the cut becomes key.

Diamond cut is paramount because it directly influences a diamond's overall appearance, brilliance, and sparkle (Learn more about our special combination with our Gavin Effect® Cut). The cut is about shaping the diamond and involves the precision and quality of its facets, proportions, and symmetry.

A well-executed cut allows light to enter the diamond, interact with its facets, and reflect back to maximize its visual appeal. This interplay of light creates the mesmerizing sparkle and fire that diamonds are celebrated for. When all angles and proportions are perfect, it results in the stunning "hearts and arrows effect" in round-shaped (and some others like Cushion or Oval cuts) diamonds.

The cut is a key factor in determining how beautiful and radiant a diamond appears. Even a diamond with excellent color and clarity may appear lackluster if poorly cut. When determining if a lab diamond is good, the cut will affect the brilliance synonymous with this gem’s natural variety. 

Cut vs. Shape

As we dive into the significance of laboratory-grown diamond cuts, it’s important to understand the nuances of cut versus shape. 

While shape dictates the external outline, the cut deals with the diamond's internal facets and their interaction with light. Both contribute to a diamond's beauty, but the cut significantly influences its brilliance.

Different shapes can give a diamond a classic or modern look, and personal preferences often play a significant role in choosing the shape. Still, the rule remains the same: always go for the diamond with a good cut.

Are All Lab Diamonds Excellent or IDEAL Cut?

There’s no end to the number of misconceptions surrounding lab diamonds. It's crucial to dispel the misconception that all lab diamonds boast an excellent cut. Lab-grown diamonds have unique characteristics and personalities, especially those that exhibit varying cut qualities.

Cut quality is determined by factors such as symmetry and polish. Not all cuts are valued the same. Precision, proportions, and craftsmanship are paramount for each diamond. Prioritizing an excellent cut ensures the diamond's optimal sparkle and visual allure.

Each of our Premium Cut diamonds are graded by the GIA and validated with the AGS Light Performance system, combining science and craftsmanship for unparalleled brilliance. Sourced from single-growth crystals and cut to Brian’s high standards, these diamonds are truly a cut above.

Most Popular Cuts for Lab Diamonds

There are plenty of brilliant cuts to choose from when it comes to lab-grown diamonds, but only a few rise to the top in popularity. The cuts below offer optimum flexibility for balancing cut, color, and clarity grades while still delivering the brilliance and fire most people desire. These are the most recommended cuts:

  • Round Brilliant: Highlights timeless elegance with maximum light reflection.

  • Pear: A unique teardrop silhouette blending round and marquise shapes.

  • Cushion: Romantic, pillow-like appearance with rounded corners.

  • Princess: Square or rectangular cut, sharp corners, and modern aesthetic. 

Choosing the Best Lab Diamond Shape

Personal preferences and lifestyle considerations play a role in the quest for the perfect lab diamond shape. While round brilliants offer timeless versatility, shapes like pear or cushion add a unique touch.

Selecting the right lab-grown diamond engagement ring requires understanding the intricacies. Remember to factor in finger shape, setting style, and individual taste. For example, do you want a timeless look? If so, you may go with the brilliant round.

The shape of your diamond can complement the shape of your fingers. For example, elongated shapes like oval or marquise can complement shorter fingers, while round or princess cuts can suit longer fingers. 

One of the many benefits of laboratory-grown diamonds is their versatility in applications. Lab diamond jewelry is increasing in popularity. There is no shortage of options, from lab-grown diamond necklaces to lab diamond earrings and bracelets. The type of diamond jewelry will also impact the shape of your stone.


Avoid compromising cut quality, no matter the shape, as it profoundly impacts the diamond's overall beauty and sparkle factor. Our customers refer to us as one of the best places to buy lab-grown diamonds online because we offer insightful detail and a beautiful collection of stones.

Explore Our Excellent Collection of Lab-Grown Diamonds

Understanding lab grown diamond certification, laboratory-grown diamond reports, production methods, and the 5 Cs will go a long way in choosing the perfect gem. Each element contributes to the overall performance of lab-grown diamonds.

Brian Gavin Diamonds lab-grown diamonds epitomize excellence. Crafted with precision and brilliance, our value proposition revolves around the 5 Cs, placing cut/performance at the forefront. If you’d like to take a deeper dive into lab diamonds, we have an extensive selection of articles about lab-grown diamonds.

Transparency and an unwavering commitment to quality define our approach. BGD lab-grown diamonds are not just gems, they're symbols of enduring beauty. The world of lab-grown diamonds offers a mesmerizing array of choices, where brilliance is complemented by timeless appeal.

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