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IGI graded natural diamonds
The International Gemological Institute (IGI), founded in Antwerp in 1975, is one of the largest diamond grading laboratories in the world.
About IGI diamonds
An IGI report records the same 4Cs, measurements, polish, symmetry and fluorescence, with a report number shown on each diamond page here.
Every diamond below is a real natural stone from live inventory, with its own grading report and, where the supplier provides them, its own photograph and video. Prices are live and rechecked with the supplier before anything is confirmed.
Questions
What does an IGI report show?
The diamond’s carat weight, colour, clarity and, for round brilliants, cut grade, with its measurements, polish, symmetry and fluorescence. An IGI report records the same 4Cs, measurements, polish, symmetry and fluorescence, with a report number shown on each diamond page here.
Are these diamonds natural?
Yes. Every centre diamond we offer is a natural, mined diamond graded by an independent laboratory, and the laboratory is named on its certificate.
Is the grading report included?
Yes. The grading report for your diamond comes with your order.