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GIA Dossier

Diamond Education Image GIA DOSSIER

A GIA (Gemological Institute of America) Dossier is a detailed report that provides information about the quality, characteristics, and origin of a diamond. The GIA is a nonprofit organization that is widely recognized as the world's leading authority on diamonds, and its diamond grading reports are highly respected and trusted within the diamond industry. A GIA Dossier includes a comprehensive analysis of a diamond's 4Cs (carat weight, cut, color, and clarity), as well as a variety of other quality factors, such as fluorescence, symmetry, and polish. The report also includes a detailed diagram of the diamond, showing the location and size of its various facets and inclusions. GIA Dossiers are typically used as a reference for determining the value and quality of a diamond, and are often requested by buyers and sellers of diamonds to ensure that they have accurate and reliable information about the stone. The GIA set the standard for diamond grading and gemological identification, and their grading system serves as the international gem and jewelry industry's benchmark credentials.


This dossier describes the following:

Laser Inscription Registry: Each diamond with a GIA Diamond Dossier is laser inscribed with the report number.

Shape and Cutting Style: Description of diamond shape and cutting style.

Measurement: Diamond dimensions.

Weight: Weight of diamond listed to the nearest hundredth of a carat.

Depth: Depth (for round diamonds) and/or width (for fancy shapes) relative to diameter.

Table: Table facet (for round diamonds) and/or width (for fancy shapes) relative to diameter.

Girdle: Range of girdle thickness.

Culet: Appearance of culet facet.

Finish: Grades of polish and symmetry.

Clarity: Clarity grade determined under 10x magnification.

Color: Grade of color

Fluorescence: Color, and strength of color when diamond is viewed under UV light.

Comments: Description of additional diamond characteristics not mentioned in the report.