Round Cut Engagement Rings

Every design comes in 10K, 14K, 18K gold or platinum, in yellow, white or rose.

Learn About Your Jewelry

4Cs Guide

Understanding the 4Cs

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Lab Grown

Why Lab-Grown?

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Engagement Guide

Engagement Ring Guide

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Jewelry Care

Jewelry Care

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The Milagros Guide

Round lab grown diamond engagement rings, made to order in New York

The round brilliant is the classic engagement ring shape and the one with the most sparkle. Its facets are arranged to send light back up through the top of the stone, so it shines from every angle. Round diamonds suit every setting, from simple solitaires to halos, hidden halos and three-stone rings.

What to look for in a round diamond

  • 01Cut grade

    For a round diamond, cut matters most for sparkle. Look for an Ideal or Excellent cut grade on the IGI report.

  • 02Color and clarity

    A well-cut round hides small inclusions well, so you can often choose a slightly lower clarity and put the budget into size or cut. Request an exact grade in the Custom Text box.

  • 03Setting

    Four prongs show more of the diamond; six prongs hold it more securely and look rounder.

Our promise

Every center stone comes with its own IGI report, and the report number is laser-inscribed on the diamond. Choose 10K, 14K or 18K gold, or platinum on many designs. Each ring is made to order at our New York office and arrives in 12–14 business days, with free insured shipping in the US.

Questions

Can't find your answer? Our New York team is happy to help, in person or on a video call.

Book an appointment

Learn more in our diamond guide and engagement ring guide, or compare oval and solitaire engagement rings. See real prices by carat in our lab grown diamond price guide.

Are lab grown diamonds real diamonds?

Yes. A lab grown diamond has the same chemical makeup, hardness and sparkle as a mined diamond. It is grown in a lab instead of being mined.

Is a round diamond more expensive than other shapes?

Round diamonds usually cost more per carat than fancy shapes like oval or pear, because more of the rough crystal is cut away to make them.

Can I see a ring in person?

Yes. Book an appointment at our office at 580 5th Ave, Suite 2300, New York, or meet us on a video call.

Guides & Journal

Guides to help you choose

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