IGI Certification
IGI, the International Gemological Institute, is one of the world's largest independent gem grading laboratories and a leading authority on lab-grown diamond grading. An IGI report gives you an impartial, expert record of exactly what your diamond is.
Why IGI certification matters
- Authenticity: confirms that your diamond is a genuine lab-grown diamond.
- Independent grading: an impartial assessment of the 4Cs: cut, color, clarity and carat weight.
- Transparency: every report carries a unique report number that can be verified online with IGI, and certified diamonds are typically laser-inscribed with that number on the girdle.
- Peace of mind: a recognized grading report supports insurance, appraisal and future resale.
Which diamonds are IGI certified
Our lab-grown diamonds of 1 carat and above are offered with IGI certification.
- Diamonds under 1 carat: IGI certification is available upon request for an additional charge.
- Custom-made and antique cut diamonds: IGI certification is available upon request for an additional charge.
To request certification, mention it when you place your order or reach out through our Personal Assistance page, and we will confirm the cost and timeline for your diamond.