The Brilliant Edit

Cushion Cut Lab Grown Diamond Engagement Ring Guide

A cushion cut remains one of the most sought-after diamond shapes for engagement rings. Its rounded corners, larger facets, and balanced appeal make it a favorite among buyers who want a shape that feels both classic and current. When paired with a lab grown diamond, a cushion cut can also offer greater flexibility in size and quality compared to many mined diamond options. According to a 2024 survey by The Knot, the average engagement ring center stone is around 1.7 carats, and lab grown diamonds continue to gain popularity among couples seeking larger stones within budget. Understanding what affects a cushion cut diamond’s appearance and value can help you make a more informed purchase.

What Is a Lab Grown Cushion Cut Diamond?

A cushion cut diamond features rounded corners and larger facets that create a balance of brilliance and fire. The shape resembles a pillow, giving it a softer appearance than many modern cuts. A lab grown cushion cut diamond is created using advanced technology that replicates the natural diamond-growing process. Once formed, it is chemically and physically identical to a mined diamond.

Many buyers choose cushion cuts because they offer:

  • A balance of brilliance and rounded edges 

  • Better resistance to corner damage than sharp-edged cuts

  • Compatibility with both classic and modern ring styles

  • A larger visual appearance than some other shapes

Lab Grown Diamond Market Trends

Lab grown diamonds have become a significant part of the engagement ring market.

  • The global lab grown diamond market was valued at more than $25 billion in 2024 and continues to grow as consumer awareness increases.

  • Industry reports indicate that lab grown diamonds can cost 30–50% less than comparable mined diamonds.

  • A growing number of engagement ring buyers are choosing lab grown diamonds to maximize carat weight and quality without increasing their budget.

These trends have made cushion cut lab grown diamonds an increasingly popular option among modern buyers.

Cushion Cut vs. Round Cut Diamonds

Both shapes are popular, but they create different visual effects.

Feature

Cushion Cut

Round Cut

Shape

Rounded corners

Circular shape 

Look

Softer outline 

Symmetrical outline 

Value

Often more affordable

Usually higher cost

Style

Vintage and modern

Traditional

Compared to round diamonds, cushion cuts typically retain more rough diamond material during cutting. This often results in a lower price per carat while still delivering strong brilliance, making them a practical option for buyers focused on value and visual impact.

How to Choose the Right Cushion Cut Diamond

Focus on Cut Quality

The quality of the cut affects how much light the diamond reflects. When reviewing diamonds:

  • Look for consistent shine across the stone. 

  • Avoid dark or dull areas.

  • Compare measurements and proportions alongside certification details. 

A well-cut diamond will usually appear more attractive than a larger stone with weaker proportions.

Consider Color and Clarity

For many buyers, the following grades offer a strong balance of appearance and value:

  • Color: G–I

  • Clarity: VS1–VS2

These grades typically appear bright and eye-clean while helping you stay within budget.

Check Certification

Always choose diamonds graded by trusted laboratories such as:

  • IGI

  • GIA

Certification verifies the diamond’s quality and provides important details about color, clarity, measurements, and carat weight.

Best Settings for Cushion Cut Engagement Rings

The setting influences both appearance and durability.

Setting

Best For

Solitaire

Clean, classic look

Halo

Extra shine and larger appearance

Hidden Halo

Additional accent diamonds beneath the center stone

Three-Stone

Greater finger coverage and a balanced look 

When choosing a setting, consider both personal style and daily wear needs.

Choosing the Right Metal for Bridal Rings

Metal choice affects the overall look of the ring.

Metal

Appearance

Platinum

Bright white and durable

White Gold

Modern and versatile

Yellow Gold

Warm and traditional

Rose Gold

Soft and contemporary

The best option depends on personal preference, skin tone, and existing jewelry.

Are Lab Grown Diamond Engagement Rings Worth It?

Many buyers select lab grown diamond engagement rings because they often provide:

  • More carat weight for the same budget

  • Higher color and clarity grades

  • The same durability and beauty as mined diamonds

  • Greater flexibility when customizing designs

Collections from Grown Brilliance showcase how cushion cuts can be paired with different settings and metals to suit a variety of preferences.

Making the Right Cushion Cut Diamond Choice

The best cushion cut diamond balances appearance, quality, and budget. Prioritize cut quality, review certification carefully, and compare settings that complement the shape. Whether selecting a simple solitaire or a more detailed design, focusing on these factors will help you choose a cushion cut engagement ring that performs well and suits your style for years to come.

FAQs

Are cushion cut diamonds more affordable than round diamonds?

In many cases, yes. Cushion cuts typically cost less than round diamonds of comparable carat weight and quality because they retain more of the original rough diamond during cutting. This can allow buyers to choose a larger stone or higher grades while staying within budget. 

Does a lab grown cushion cut diamond shine like a mined diamond?

Yes. Lab grown and mined diamonds have the same physical and optical properties, meaning they reflect light in the same way. Shine depends on factors such as cut quality, facet arrangement, depth, and proportions. A well-cut lab grown cushion diamond can be just as brilliant as a mined diamond. 

What clarity grade is best for cushion cut engagement rings?

VS1 and VS2 clarity grades are often recommended because they typically appear eye-clean without visible inclusions. These grades provide a strong balance between appearance and value, allowing buyers to prioritize carat weight or color without compromising the diamond’s overall visual appeal. 

Do cushion cut diamonds look larger than other shapes?

They can. Cushion cuts often have a broad face-up appearance, particularly elongated cushion cuts. Their shape can make them appear larger than some other diamond cuts of the same carat weight, especially when paired with settings designed to maximize visual size and finger coverage. 

What is the most popular setting for cushion cut engagement rings?

Solitaire and halo settings remain the most popular choices for cushion cut engagement rings. A solitaire highlights the diamond’s shape and brilliance, while a halo adds surrounding diamonds that increase shine and create the appearance of a larger center stone. 

 

Cheryl Robichaux
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Priyanshi Shah

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