Certifications

The International Gemological Institute (IGI) is an independent laboratory and the world's most trusted authority on lab-grown diamonds. It grades each stone and records the result in a report with a unique number, laser-inscribed on the stone itself.

• Cut - how well the diamond returns light. It decides the sparkle.
• Colour - graded from D (colourless) downwards.
• Clarity - how free the stone is of tiny natural inclusions.
• Carat - the stone's weight. One carat is 0.2 grams.
• Its shape, measurements, polish and symmetry - and that it is laboratory-grown.

1. Find the report number on your IGI certificate.
2. Visit igi.org and enter it under "Verify your report".
3. The online record shows the same grades as your printed report.

A lab-grown diamond is a real diamond: the same carbon, the same crystal, the same hardness and fire as one mined from the earth. Only its origin differs - it is grown in weeks rather than formed over millions of years, with a far smaller footprint.