Documentation // 04

Checked by
someone else.

A diamond’s description should be checkable by someone other than the seller. That is what a grading report does, and every Peelerie piece that includes an IGI report says so on its product page.

What a grading certificate is

A grading certificate, or report, is issued by a gemological laboratory that examines the diamond and records its characteristics. The best-known laboratories include the International Gemological Institute (IGI) and the Gemological Institute of America (GIA), both of which grade lab-grown diamonds and identify them as laboratory-grown on the report.

What it records

Carat weight	Recorded to the hundredth of a carat
Measurements	The stone’s dimensions in millimeters
Cut and proportions	For round brilliants, a cut grade; for all shapes, polish and symmetry
Color	A letter grade on the D-to-Z scale
Clarity	A grade from Flawless to Included, often with a plotted diagram
Origin	Identification as laboratory-grown, and often the growth method

For jewelry set with many small diamonds, such as tennis bracelets, the report describes the diamonds in the piece together: their total weight and their color and clarity range.

Linking the stone to the paper

Larger individually graded diamonds usually carry their report number laser-inscribed on the girdle, the thin outer edge of the stone, visible under magnification. It ties the stone to its document.