Round Cut Lab-Grown Diamond Engagement Rings

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2
2 Choose your Diamond

First, select a ring style that resonates with you. Next, click Build Your Ring to access our extensive diamond vault. Once you find a diamond that you like, select it before finalizing the details of your ring.

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3 Complete your Ring

After selecting your ring and diamond, you can now choose your metal type, size your ring to fit, and write an engraving before checking out.

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Diamond Halo Engagement Ring with Bright-Cut Diamond Band

From $3,931 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundPearEmeraldCushion+ 1 more

Diamond Halo Engagement Ring with Vintage Detailing

From $6,155 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Bright-Cut Diamond Halo Engagement Ring with Plain Band

From $3,306 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Diamond Engagement Ring with Six Side Diamonds

From $2,786 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundOval

Twisted Hearts Diamond Engagement Ring

From $2,644 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Vintage Diamond Engagement Ring with Six Side Diamonds

From $3,296 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Three-Stone Diamond Engagement Ring with Twisted Band

From $5,236 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Three-Stone Diamond Engagement Ring with Cathedral Setting

From $5,576 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Diamond Cluster Engagement Ring

From $7,885 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Diamond Engagement Ring with Double Prongs

From $3,179 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
CushionRoundOvalPrincessAsscherRadiantEmerald+ 4 more

Diamond Engagement Ring with Hidden Diamond

From $3,304 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundOvalPearEmeraldCushionRadiantPrincessMarquiseAsscherHeart+ 7 more

Tension-Setting Diamond Engagement Ring with Diamond Band

From $3,629 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Cathedral-Setting Diamond Engagement Ring with Diamond Pavé Bridge

From $3,379 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundOvalPearEmeraldCushionRadiantPrincessMarquiseAsscherHeart+ 7 more

Diamond Engagement Ring with Bright-Cut Band and Diamond Bridge

From $3,676 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundOvalPearEmeraldCushionRadiantPrincessAsscher+ 5 more

Diamond Engagement Ring with Twisted Prong Setting

From $3,256 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Diamond Engagement Ring with Diamond Pavé Cathedral Setting

From $7,294 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundOvalEmeraldCushionRadiantPrincessAsscher+ 4 more

Cathedral-Setting Diamond Engagement Ring with Diamond Bridge

From $2,909 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundOvalPearEmeraldCushionRadiantPrincessAsscherHeart+ 6 more

Solitaire Diamond Engagement Ring with Hidden Diamond

From $2,635 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RadiantCushionEmeraldOvalRoundPrincessAsscher+ 4 more

Solitaire Diamond Engagement Ring with Six Prongs

From $2,556 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Split-Shank Solitaire Diamond Engagement Ring

From $3,511 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Solitaire Diamond Engagement Ring with Twisted Setting

From $2,641 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
Round

Solitaire Diamond Engagement Ring with Basket Setting

From $2,554 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
OvalRoundPrincessAsscherRadiantCushionEmeraldPearMarquiseHeart+ 7 more

Solitaire Diamond Engagement Ring with Diamond Pavé Basket Setting

From $3,042 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
OvalRoundPrincessAsscherRadiantCushionEmeraldPear+ 5 more

Solitaire Diamond Engagement Ring with Secret Heart

From $2,474 CAD
18k White Gold18k Yellow Gold14k Rose GoldPlatinum+ 1 more
RoundOvalPrincessPearRadiantEmeraldCushionAsscher+ 5 more

Personalize Your Signature Ring

A client and a jeweler designing a custom diamond engagement ring in the Ecksand Montreal atelier.

1. Start with a Ring Design

Choose an engagement ring design that speaks to you. The process begins starting from a signature collection, your preferred diamond shape, or the classic ring style like solitaire or halo.

A jeweler inspects loose diamonds for a Canadian-made Ecksand engagement ring. Round, asscher, and pear cuts shown.

2. Choose your Diamond

Our online curation of lab-grown and natural diamonds makes for a seamless experience. Updated in real-time for ultimate cut, carat, clarity, and colour with certified ethical provenance.

A close-up of a Canadian-made oval diamond engagement ring being handcrafted by an Ecksand jeweller in our Montreal atelier.

3. Finalize the Details

Select a hue of solid gold of recycled origin or sustainable platinum and personalize further by including a meaningful engraving.

Made in Montreal, Canada

Every Ecksand engagement ring is shaped through a fully vertical process: imagined, engineered, and handcrafted within our integrated Montreal atelier from first sketch to final polish. This disciplined approach is the foundation of our craft, a sense of presence that feels unmistakably Ecksand.

It’s this commitment to true in-house creation that earned Ecksand the Canadian National Hallmark, a rare designation awarded to only 108 companies in its four decades of existence, affirming the authenticity, integrity, and artistry behind every jewel we’ve crafted since 2009.

An Ecksand expert at our Montreal boutique presents Canadian-made diamond rings and a necklace.

Meet with a Bridal Expert

Connect with our Client Advisors, in person or online, for a one-on-one session dedicated to refining and personalizing your signature ring.

Round Cut Lab-Grown Diamond Engagement Rings

A round lab-grown diamond engagement ring begins with the cut most engineered for light. The round brilliant's 57 precisely angled facets are designed to return light through the stone's table with maximum efficiency, a property that makes cut grade the single most consequential quality variable for this shape. A stone graded excellent or ideal reflects light back through the top with near-total efficiency; a lower cut grade allows light to escape through the pavilion, reducing visible brilliance regardless of color or carat. Ecksand's in-house gemmologists assess cut grade, symmetry, and polish first when selecting round brilliant lab-grown stones, before color and clarity are considered. Every stone above the threshold carries an IGI certificate confirming all four grading criteria independently. This sequence of assessment is not standard across the industry, and it is the basis of every ring that leaves the Montreal atelier.

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Why is the round brilliant cut the most popular diamond shape for engagement rings?

The round brilliant's 57 precisely angled facets are engineered to return the maximum possible light through the stone's table. No other diamond shape achieves the same efficiency of light return. Its circular outline is universally compatible with every setting style and flattering across all hand proportions. For a lab-grown stone, where internal clarity is typically consistent from the growth process, cut grade is the variable that determines how well the stone's potential brilliance is realized. A well-graded round brilliant in a considered setting performs with remarkable consistency.

What makes a high-quality round lab-grown diamond engagement ring?

For the round brilliant, cut grade is the primary quality variable. A stone graded excellent or ideal returns light through the table with near-total efficiency; a lower cut grade allows light to escape through the pavilion, reducing visible brilliance. Ecksand's in-house gemmologists assess cut grade, symmetry, and polish before color and clarity when selecting lab-grown round brilliant stones. Ecksand offers only Excellent or Ideal cut round diamonds. Every stone above the threshold carries an IGI certificate confirming all four grading criteria independently before the ring enters production at the Montreal atelier.

What setting styles work best with a round cut lab-grown diamond?

The round brilliant's circular symmetry is compatible with every setting family. A solitaire presents the cut at full performance with no visual competition. A halo frames the circular outline with smaller stones, increasing the ring's presence while reinforcing its symmetry. A pavé band adds light along the band without altering the center stone's dominance. At Ecksand's Montreal atelier, each setting is engineered with the round brilliant's specific proportions in mind, ensuring prong placement and band width are calibrated to the individual stone selected rather than applied as a standard template.

Can I choose a round brilliant lab-grown diamond for any metal at Ecksand?

Ecksand's round brilliant lab-grown engagement rings are available in white gold, yellow gold, rose gold, and platinum, each crafted in solid gold of recycled origin or sustainable platinum at the Montreal atelier. White gold and platinum complement the cut's neutral color expression. Yellow and rose gold introduce warmth against the round stone's circular outline. The Maison's client advisers can guide on how a specific IGI color grade reads against each metal during an in-person appointment at either boutique or through a virtual consultation.

Where are Ecksand's round lab-grown diamond engagement rings made?

Every round lab-grown diamond engagement ring in Ecksand's collection is designed, crafted, and finished at the Maison's Montreal atelier. Ecksand holds the Canadian National Mark, one of fewer than 110 certifications awarded over forty years, confirming full vertical integration and genuine Canadian origin. Clients can explore the collection at the Montreal Maison or the Yorkville Boutique, or book a virtual consultation. The ring builder is available online for stone selection and setting configuration at any stage before an appointment.

Round Cut Lab-Grown Diamond Engagement Rings

Creative Director Erica Bianchini approaches the round brilliant as the cut that requires restraint from the setting, not embellishment. Its circular symmetry distributes light uniformly across the stone's surface. A well-crafted setting presents this without competition: clean prong work, considered band proportions, no decorative elements that interrupt what the stone is already doing. This principle shapes how Ecksand engineers settings for the round brilliant across all setting families in the collection. A solitaire presents the cut at full performance with no visual distraction. A halo frames the circular outline with a border of smaller stones, increasing the ring's overall presence while reinforcing its symmetry. A pavé band introduces additional light performance along the band without altering the center stone's visual dominance. Each configuration is hand-finished at the Montreal atelier, where prong placement and shank proportions are calibrated to the specific stone selected.

All settings are crafted in solid gold of recycled origin; platinum is available across the collection. White gold and platinum complement the round brilliant's neutral color expression. Yellow and rose gold introduce warmth against the stone's circular outline, creating a contrast suited to a more distinctive aesthetic. Ecksand holds the Canadian National Mark, confirming that every ring is wholly designed, crafted, and finished in Canada. The ring builder guides stone selection, cut grade, metal, and setting configuration step by step. In-person appointments are available at the Montreal Maison and the Yorkville Boutique; virtual consultations are offered worldwide.