GIE Certification
The GIE diamond certificate guarantees a genuine diamond, being graded thoroughly and provides a reliable statement of the diamond’s identity and grade. In the diamond certification GIE includes all of the relevant information pertaining to the diamond. GIE grades the diamonds according to the 4cs: carat weight, color grade, clarity grade and cut grade, GIE also grades fluorescence, measurement, proportions and finish. The GIE report is derived from the use of most advanced techniques and equipment currently available in the market, including an Optical Magnification 10X loupe and binocular microscope, Diamond color comparison tools, Optical non-contact proportion devices, and other instruments and processes needed to produce accurate and consistent results.

Shape and cut: typical examples: round brilliant and princess . Measurements: The GIE laboratory uses a Sarin DiaMension machine for millimeter measurement and the proportion information about each diamond. Round brilliant millimeter measurements are expressed (minimum diameter) – (maximum diameter) x depth. Princess millimeter measurements are expressed (length top to bottom) * (width left to right) x depth. WeightThe weight or size of a diamond is measured in carats (ct.). A carat is 0.2 grams and there are 100 points (or 200 milligrams) per carat. GIE Scales provide a highly precise diamond weight and this weight is specified on the Diamond Report to two decimal points.

Proportions: describes several characteristics relating to the diamond cut. Depth: for round diamonds the depth is relative to the average diameter, and for fancy shapes it’s relative to the width. Table: the average size of the table facet in relation to the average diameter for round diamonds and to the width in fancy diamonds. Girdle thickness: the thickness of the girdle is relative to the size of the diamond. Culet size: the size of the culet relative to the size of the diamond.

Finish: describes the quality of a diamond’s polish and symmetry. Polish: describes the quality of the surface condition. Symmetry: describes the size, shape and placement of the facets.

This part describes characteristics of the diamond that were not referred to in the report. For example: laser inscription, clouds etc.

The clarity of a diamond has always been one of the main factors in determining a diamond’s value. Over the years criteria for determining the clarity have become more universal. The greater a diamonds clarity, the more brilliant, valuable and rare it is.

The more white and transparent the diamonds appears the more rare and valuable it is. The only exception regards fancy colored diamonds which are valued specifically for their unique colors. Most diamonds of gem quality vary in shade from colorless to yellow. GIE grades a diamond’s color from D to Z and also fancy colors.