Free insured shipping and 30-day returns on every order
  1. 01Diamond
  2. 02Setting
  3. 03Ring

Round Lab-Grown Diamonds

Certified lab-grown round diamonds, each with an independent grading report. Lab-grown diamonds are chemically and optically the same as mined ones and cost far less per carat, so the same budget buys a larger or finer stone.

Filter by carat, color and clarity, then pair your diamond with any round engagement ring setting.

1,071 stones

Round Lab-Grown Diamonds: common questions

Are lab-grown diamonds real diamonds?+

Yes. They are pure carbon with the same crystal structure, hardness and sparkle as mined diamonds, and the FTC classifies them as diamonds. Every stone here is named lab-grown and graded by an independent lab.

Which certificate do these stones have?+

Each stone has a grading report from IGI or GIA, with the report number laser-inscribed on the girdle. The report is linked on every diamond page.

Keep exploring

New to diamonds? Start with our guide to the 4 Cs or design a complete ring.