An IGI certified lab diamond is a laboratory-grown diamond assessed by the International Gemological Institute. Its grading report records identifying and quality information such as carat weight, colour, clarity, measurements and relevant cut details, helping buyers compare loose lab diamonds consistently.

Yes. Lab-grown diamonds have the same fundamental crystal structure and physical properties as mined diamonds, but they are created in a controlled environment. IGI independently assesses and reports the characteristics of the submitted lab-grown diamond.

An IGI lab diamond report commonly records the report number, laboratory-grown origin, shape, measurements, carat weight, colour, clarity and applicable cut or finish grades. Review the individual listing and its report because the exact information can vary by stone and report format.

Use the report number shown on the diamond listing or certificate and check it through IGI's official report-verification service. Confirm that the report details match the stone you are considering, including its shape, carat weight, measurements and grading information.

Start with your preferred shape, size and budget, then compare carat, cut, colour, clarity, measurements, proportions and price. Two lab diamonds with similar headline grades can look different, so review the full IGI report and dimensions before ordering.