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Certified Lab-Grown

Round Diamonds

The round brilliant is the most popular diamond shape and the one cut for maximum sparkle. Its 57 or 58 facets return more light than any other shape, which helps it hide small inclusions and a hint of color.

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16,087 Diamonds

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About Round Lab-Grown Diamonds

The round brilliant is the most popular diamond shape and the one cut for maximum sparkle. Its 57 or 58 facets return more light than any other shape, which helps it hide small inclusions and a hint of color.

What lab-grown means

Lab-grown diamonds are real diamonds: the same carbon crystal, hardness and sparkle as a mined diamond, grown in a lab instead of taken from the ground. Even a gemologist needs specialist equipment to tell them apart.

What certified means

Certified means an independent lab, usually IGI for lab-grown diamonds, has examined the stone and issued a grading report describing its carat weight and quality. The report number is on each diamond’s page, so you can check it on the lab’s website.

Round Diamond FAQs

Why are round diamonds the most popular shape?

Round brilliants are cut to return as much light as possible, so they give the most sparkle. The shape is classic, suits almost every setting and is easy to match with wedding bands.

What cut grade should I choose for a round diamond?

Cut matters most on a round diamond because it decides the sparkle. Ideal or Excellent cut grades return the most light.

Which color and clarity look best in a round diamond?

Round brilliants hide color and inclusions well. Near-colorless grades (G–H) and VS2 clarity or better usually look white and clean to the eye.