钻石 - 鉴定所服务

Analysis and Grading

Natural Diamond Reports & Services

Available reports

Diamond Grading Report

Diamond Grading Report

Full 4Cs assessment with a plotted clarity diagram. For loose, natural D-to-Z color diamonds only, weighing 0.15 carats or more.

    Diamond Grading Report

    Diamond Grading Report

    Full 4Cs assessment with a plotted clarity diagram, geographic origin and GIA report number laser inscription. For loose, natural D-to-Z color diamonds only, weighing 0.15 carats or more that were submitted for rough analysis. Learn More

      Diamond Dossier®

      Diamond Dossier®

      Full 4Cs assessment. GIA report number laser inscription included. For loose, natural D-to-Z color diamonds only, weighing 0.15 -1.99 carats.

        Diamond eReport

        Diamond eReport

        Full 4Cs assessment and face-up diamond image. For loose, natural D-to-Z color diamonds only, weighing 0.15 -2.99 carats. Digital-only report

          Diamond Focus® Report

          Diamond Focus® Report

          Full 4Cs assessment with GIA report number laser inscription. For select loose, natural diamonds under 0.40 carats, see submission guidelines. Digital-only report

            Natural Colored Diamond Services

            Add-On Services

            GIA Add-On Services give you further information or security for your natural colored diamond.

            Follow-Up Services

            GIA Follow-Up Services verify, re-evaluate or update results from your original GIA service.

            Specialty Services

            GIA Specialty Services offer further analysis and information on your noteworthy natural colored diamonds.

            Batch Services

            GIA Batch Services utilize GIA-developed technology to analyze and sort natural colored diamonds based on varying test types.

            Resources

            REPORT CHECK PLUS

            REPORT CHECK PLUS

            Easily download grading results and PDFs of multiple reports at once.
            LAB RETURN DATES

            LAB RETURN DATES

            ANALYSIS & GRADING FEES

            ANALYSIS & GRADING FEES

            FACETWARE CUT ESTIMATOR

            FACETWARE CUT ESTIMATOR

            Use GIA’s free online tool to estimate a cut grade.
            FACETWARE CUT ESTIMATOR

            FACETWARE CUT ESTIMATOR

            Use GIA’s free online tool to estimate a cut grade.
            CONTACT LAB SERVICES

            CONTACT LAB SERVICES

            Questions? Call +1 800 421 7250 ext 7590 or +1 760 603 4500 ext 7590
            GIA Locations

            GIA Locations

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            Natural Diamond Grading Reports & Services