Diamonds

For more than 50 years, fine jewellers everywhere have considered the GIA Diamond Grading Report the premier credential of a diamond’s authenticity and quality.

  • GIA Diamond Grading Report

    The GIA Diamond Grading Report includes an assessment of a diamond’s 4C’s – colour, clarity, cut, and carat weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions. For standard round brilliant cut diamonds falling in the D-to-Z colour range, the report also includes a GIA Cut grade.

    The GIA laboratory issues diamond grading reports for loose, natural diamonds in the D-to-Z colour range that weigh 0.15 carats or more. GIA Diamond Grading Reports are not issued for synthetics, simulants, mounted diamonds or those that have undergone unstable treatments, such as fracture filling or coating. And while reports may be issued for diamonds that have been laser drilled or HPHT processed, these stable treatments are prominently disclosed on the report.

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  • GIA Diamond Dossier®

    The GIA Diamond Dossier offers the same grading information as the GIA Diamond Grading Report but without the plotted diagram. As an added security feature, the Dossier service includes a microscopic laser inscription of the report number on the diamond’s girdle.

    The GIA laboratory issues the Diamond Dossier for loose, natural diamonds between 0.15 and 1.99 carats, in the D-to-Z colour range. The Diamond Dossier is not issued for synthetics, simulants, mounted diamonds, diamonds that have undergone unstable treatments such as fracture filling or coating, or those that have been HPHT processed. Any evidence of other treatment is prominently disclosed in the report.

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  • GIA Diamond eReport

    The GIA Diamond eReport, a digital-only report, provides the same impartial and exacting grading results you’ll find on other GIA reports. The report includes a graphic representation of the diamond’s proportions, and the added feature of a detailed face up image of the diamond captured during the grading process.

    Paperless and therefore environmentally friendly, the GIA Diamond eReport is accessible online via Report Check, GIA’s secure web-based report database, making the report always accessible and shareable. This service is available for natural, untreated diamonds in the D-to-Z colour range that weigh from 0.15 to 2.99 carats.

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  • Diamond Focus™ Report

    Online report only. The GIA Diamond Focus™ Report is a cost-effective grading report delivering key grading information in a digital format for select natural D-to-Z diamonds.

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  • GIA Colored Diamond Grading Report

    The GIA Colored Diamond Grading Report provides a full quality assessment of a coloured diamond including the coloured diamond colour grade, colour origin (natural or treated, such as HPHT processed or artificially irradiated), carat weight, clarity, and a plotted diagram of its clarity characteristics. As an optional service, a full colour image of the diamond may also be included.

    Unlike GIA’s D-to-Z colour grading system, which is based on the relative absence of colour, coloured diamond colour grading is based on the presence of colour. Using a controlled viewing and lighting environment and a comprehensive set of colour comparators, trained graders consistently determine the characteristic colour of a diamond and assign a colour grade (“pink,” for example). The hue chosen is modified by a “Fancy-grade” term, such as Fancy Light, Fancy, Fancy Intense, Fancy Deep, Fancy Vivid or Fancy Dark, which describes the combined effect of tone and saturation.

    The laboratory issues this report on loose, natural coloured diamonds weighing 0.15 carats or more. The GIA Colored Diamond Grading Report is not issued for synthetics, simulants, mounted diamonds or those that have undergone unstable treatments, such as fracture-filling or coating. Any evidence of other treatment is prominently disclosed in the report.

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  • GIA Colored Diamond Identification and Origin Report

    The GIA Colored Diamond Identification and Origin Report describe the colour grade of a coloured diamond as well as its origin of colour (natural or treated, such as HPHT processed or artificially irradiated). As an optional service, a full colour image of the diamond may also be included.

    Both mounted and loose natural coloured diamonds of any size can be submitted for this report service. The GIA Colored Diamond Identification and Origin Report are not issued for synthetics, simulants, or diamonds that have undergone unstable treatments, such as fracture-filled or coated diamonds. Any evidence of other treatment is prominently disclosed in the report

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