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Information Documented in the Diamond Grading Report

Term	Definition
Shape and Cutting Style:	Shape and style of cutting.
Measurements:	Dimensions and proportions in millimeters as measured by an optical measurement device.
Carat Weight:	Weight in carats measured by an electronic micro-balance.
Color Grade:	Color assigned as compared to the standardized (D - Z) color grading system when viewed in a controlled environment by several graders. Grade is assigned when a consensus has been reached.
Clarity Grade:	Clarity assigned as compared to the standardized (IF - I3) color grading system. Grade is assigned when a consensus has been reached among several graders.
Cut Grade:	A grade (Excellent, Very Good, Good, Fair, Poor) assigned to the diamond after careful evaluation of the diamond's proportions (measurements and facet angles), along with the polish, symmetry, brightness, fire, scintillation (sparkle and pattern), weight ratio and durability.
Polish:	A grade (Excellent, Very Good, Good, Fair, Poor) assigned to the diamond's surface smoothness.
Symmetry:	A grade (Excellent, Very Good, Good, Fair, Poor) assigned to the shape, alignment, and placement of the facets in relation to each other.
Flourescence:	Strength and color of the diamond's flourescence in response to UV light.
Comments:	Additional diamond characteristics and inscriptions not previouslymentioned on the report.
Clarity Plot:	A map of the diamond's internal inclusions, their location and type as viewed under a micropscope.
Proportion Diagram:	A side profile of the diamond containing its actual proportions and measurements.

Types of Reports Offered

GIA Diamond Grading Report

The GIA Diamond Grading Report is the most comprehensive report GIA offers and is exclusive to natural untreated diamonds at least 0.15 carats and larger. The report includes the full description of the diamond's carat weight, dimensions, color, clarity, cut grade (round brilliant diamonds only), polish, and symmetry, as well as a full plotting of the internal characteristics.

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GIA Diamond Dossier®

The GIA Diamond Dossier® is offered for natural untreated diamonds 0.15 to 1.99 carats in weight and includes all of the information provided on the full report with the exception of the plot. The plot for GIA Diamond Dossiers® has been replaced with a laser inscription containing the reports unique ID number on the girdle of the diamond.

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GIA Colored Diamond Grading Report

The GIA Colored Diamond Grading Report is available for diamonds 0.15 carats and larger outside the (D-Z) color range. The report provides the color grade, color origin (nautural or treated), carat weight, clarity, and a diagram of the clarity characteristics. Some Color Diamond Grading Reports may also have a full color image of the diamond, as this is available as an option.

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