Round Cut Lab Diamond Engagement Rings

When we think of an engagement ring, one shape instantly comes to mind: the classic round. Timeless, balanced and beautifully symmetrical, it’s the shape that defines tradition. In our round engagement ring collection, this iconic silhouette comes alive with the brilliance and clarity of lab-grown diamonds. Explore now and let your love shine in the most iconic shape of all.
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Yellow gold round cut solitaire engagement ringSolitaire Yellow gold engagement ring with sidestonesSidestones Yellow gold three stones engagement ringThree Stone Yellow gold round cut solitaire ring with sidestonesVintage Yellow Gold crown ring with round cut diamondBridal Sets Yellow gold halo engagement ringHalo
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Round cut diamondRound Oval cut diamondOval Princess cut diamondPrincess Emerald cut diamondEmerald Cushion cut diamondCushion Heart cut diamondHeart Radiant cut diamondRadiant Asscher cut diamondAsscher Pear cut diamondPear Marquise cut diamondMarquise
Twist Lab Grown Diamond Engagement Ring (3.00 CT) Twist Lab Grown Diamond Engagement Ring (3.00 CT)

Twist Lab Grown Diamond Engagement Ring (3.00 CT)

$3,249.00
White Gold
Hidden Halo Round Lab Grown Diamond Engagement Ring (3.00 CT) Hidden Halo Round Lab Grown Diamond Engagement Ring (3.00 CT)

Hidden Halo Round Lab Grown Diamond Engagement Ring (3.00 CT)

$3,017.00
Yellow Gold
Knife Edge Round Lab Grown Diamond Engagement Ring (3.00 CT) Knife Edge Round Lab Grown Diamond Engagement Ring (3.00 CT)

Knife Edge Round Lab Grown Diamond Engagement Ring (3.00 CT)

$3,053.00
White Gold
Round Bezel Solitaire Lab Grown Diamond Engagement Ring (3.00 CT) Round Bezel Solitaire Lab Grown Diamond Engagement Ring (3.00 CT)

Round Bezel Solitaire Lab Grown Diamond Engagement Ring (3.00 CT)

$3,137.00
Yellow Gold
Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (3.00 CT) Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (3.00 CT)

Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (3.00 CT)

$3,157.00
Rose Gold
4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (3.00 CT) 4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (3.00 CT)

4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (3.00 CT)

$3,027.00
Yellow Gold
Knot Lab Grown Diamond Engagement Ring Knot Lab Grown Diamond Engagement Ring

Knot Lab Grown Diamond Engagement Ring

$2,153.00
White Gold
Round Cut Lab Grown Diamond Round Halo Engagement Ring (1.50 CT) Round Cut Lab Grown Diamond Round Halo Engagement Ring (1.50 CT)

Round Cut Lab Grown Diamond Round Halo Engagement Ring (1.50 CT)

$2,323.00
Yellow Gold
Round Cut Lab Grown Diamond Round Halo Engagement Ring (2.00 CT) Round Cut Lab Grown Diamond Round Halo Engagement Ring (2.00 CT)

Round Cut Lab Grown Diamond Round Halo Engagement Ring (2.00 CT)

$2,659.00
White Gold
Round Bezel Solitaire Lab Grown Diamond Engagement Ring (1.50 CT) Round Bezel Solitaire Lab Grown Diamond Engagement Ring (1.50 CT)

Round Bezel Solitaire Lab Grown Diamond Engagement Ring (1.50 CT)

$1,949.00
Yellow Gold
Round Bezel Solitaire Lab Grown Diamond Engagement Ring (2.00 CT) Round Bezel Solitaire Lab Grown Diamond Engagement Ring (2.00 CT)

Round Bezel Solitaire Lab Grown Diamond Engagement Ring (2.00 CT)

$2,299.00
Rose Gold
Round Halo Lab Grown Diamond Engagement Ring (1.50 CT) Round Halo Lab Grown Diamond Engagement Ring (1.50 CT)

Round Halo Lab Grown Diamond Engagement Ring (1.50 CT)

$2,279.00
Yellow Gold
Round Halo Lab Grown Diamond Engagement Ring (2.00 CT) Round Halo Lab Grown Diamond Engagement Ring (2.00 CT)

Round Halo Lab Grown Diamond Engagement Ring (2.00 CT)

$2,615.00
White Gold
Knife Edge Round Lab Grown Diamond Engagement Ring (2.00 CT) Knife Edge Round Lab Grown Diamond Engagement Ring (2.00 CT)

Knife Edge Round Lab Grown Diamond Engagement Ring (2.00 CT)

$2,265.00
Yellow Gold
Hidden Halo Round Lab Grown Diamond Engagement Ring (1.50 CT) Hidden Halo Round Lab Grown Diamond Engagement Ring (1.50 CT)

Hidden Halo Round Lab Grown Diamond Engagement Ring (1.50 CT)

$2,027.00
White Gold
Floral Halo Lab Grown Diamond Engagement Ring Floral Halo Lab Grown Diamond Engagement Ring

Floral Halo Lab Grown Diamond Engagement Ring

$1,665.00
Yellow Gold
4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (2.00 CT) 4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (2.00 CT)

4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (2.00 CT)

$2,345.00
Rose Gold
4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.00 CT) 4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.00 CT)

4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.00 CT)

$1,663.00
Yellow Gold
Alternating Marquise Sidestone Lab Grown Diamond Engagement Ring (1.00 CT) Alternating Marquise Sidestone Lab Grown Diamond Engagement Ring (1.00 CT)

Alternating Marquise Sidestone Lab Grown Diamond Engagement Ring (1.00 CT)

$1,447.00
White Gold
Knife Edge Round Lab Grown Diamond Engagement Ring (1.50 CT) Knife Edge Round Lab Grown Diamond Engagement Ring (1.50 CT)

Knife Edge Round Lab Grown Diamond Engagement Ring (1.50 CT)

$1,895.00
Yellow Gold
Knife Edge Round Lab Grown Diamond Engagement Ring (1.00 CT) Knife Edge Round Lab Grown Diamond Engagement Ring (1.00 CT)

Knife Edge Round Lab Grown Diamond Engagement Ring (1.00 CT)

$1,499.00
White Gold
Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Sidestones (1.50 CT) Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Sidestones (1.50 CT)

Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Sidestones (1.50 CT)

$2,151.00
Yellow Gold
6-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.50 CT) 6-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.50 CT)

6-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.50 CT)

$2,033.00
Rose Gold
Hidden Halo Round Lab Grown Diamond Engagement Ring (1.00 CT) Hidden Halo Round Lab Grown Diamond Engagement Ring (1.00 CT)

Hidden Halo Round Lab Grown Diamond Engagement Ring (1.00 CT)

$1,703.00
Yellow Gold
Twist Lab Grown Diamond Engagement Ring (2.00 CT) Twist Lab Grown Diamond Engagement Ring (2.00 CT)

Twist Lab Grown Diamond Engagement Ring (2.00 CT)

$2,543.00
White Gold
Twist Lab Grown Diamond Engagement Ring (1.50 CT) Twist Lab Grown Diamond Engagement Ring (1.50 CT)

Twist Lab Grown Diamond Engagement Ring (1.50 CT)

$2,193.00
Yellow Gold
Hidden Halo Round Lab Grown Diamond Engagement Ring (2.00 CT) Hidden Halo Round Lab Grown Diamond Engagement Ring (2.00 CT)

Hidden Halo Round Lab Grown Diamond Engagement Ring (2.00 CT)

$2,361.00
White Gold
4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.50 CT) 4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.50 CT)

4-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (1.50 CT)

$2,009.00
Yellow Gold
6-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (2.00 CT) 6-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (2.00 CT)

6-Prong Solitaire Round Cut Lab Grown Diamond Engagement Ring (2.00 CT)

$2,439.00
Rose Gold
Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Sidestones (2.00 CT) Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Sidestones (2.00 CT)

Cathedral Round Cut Lab Grown Diamond Engagement Ring with Pave Set Sidestones (2.00 CT)

$2,475.00
Yellow Gold
Cluster Accent Round Cut Lab Grown Diamond Engagement Ring (1.00 CT) Cluster Accent Round Cut Lab Grown Diamond Engagement Ring (1.00 CT)

Cluster Accent Round Cut Lab Grown Diamond Engagement Ring (1.00 CT)

$1,561.00
White Gold
Cluster Accent Round Cut Lab Grown Diamond Engagement Ring (1.50 CT) Cluster Accent Round Cut Lab Grown Diamond Engagement Ring (1.50 CT)

Cluster Accent Round Cut Lab Grown Diamond Engagement Ring (1.50 CT)

$1,881.00
Yellow Gold
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Forever Brilliant: Round Lab Diamond Engagement Rings

With its perfectly round, classy and versatile shape, along with the beautiful interplay of countless facets, it’s no wonder the round cut has captivated hearts for centuries and is still in high demand. Eternate brings together this classic and always en-vogue cut with innovative alternatives through round lab diamond engagement rings.

Nestled within a solitaire, channel, halo or three-stone setting, dazzling round lab-grown diamonds offer the same quality and brilliance of a natural diamond, all at a more modest budget. Choose your dream round engagement ring, and our skilled craftsmen will dedicate their expertise to bringing it to life.

Round Lab Diamond Engagement Rings FAQs

What setting makes a round diamond look bigger?

A cluster setting with additional diamonds grouped together or a halo setting with smaller stones encircling the center stone makes a round diamond appear larger. Additionally, a setting with a thin band can also make a round lab diamond engagement ring stand out even more.

Is round a good cut for a diamond?

Yes, the round cut is widely known as one of the best cuts for a diamond, and this is definitely not without reason. The round cut maximizes the diamond's ability to reflect light and has exceptional brightness and scintillation. Moreover, it is a classic that can adapt to any style and any jewelry you can think of.

How many facets does a round diamond have?

Round lab-grown diamonds have the largest number of facets, and, thus, they create the most sparkle of all. Most round diamonds have 58 facets, while some might have 57.

Can a jeweler spot a lab-grown diamond?

If they have specialized equipment and expertise, yes. As lab-grown diamonds become more and more prevalent in the market, jewelers, too, become increasingly equipped to tell them apart accurately. For more information about lab-grown diamonds, check out our Lab-Grown vs. Natural Diamonds.

Find Your Forever with a Round Lab Diamond Engagement Ring

Our round-cut lab diamond rings bring you all the sparkle, without the stress. Every lab diamond engagement ring we make is 100% conflict-free and sustainably sourced, so you can feel just as good as your ring looks. Want to see more options? Check out our round moissanite engagement rings or round natural diamond engagement rings too, each one just as stunning in its own way. Whatever you choose, our team of expert jewelers is here to bring your dream ring to life with care, precision and a whole lot of love.