These certificates are issued by the Gemological Institute of America (GIA), a non-profit and independent organization. The gemstone or ring will be sent to the GIA laboratory for grading and this process takes 4-6 weeks in addition to the standard production time. For stones that are already mounted on the ring, the ct will be approximated as it can not be weighed.
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 & Origin 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.
Diamond Dossier Report: Full 4Cs assessment. GIA report number laser inscription included. For loose, natural D-to-Z color diamonds only, weighing 0.15 -1.99 carats.
Colored Stone Identification Report: Identifies and describes a material and lists detectable treatments. For any polished, rough, loose, or mounted material.
Colored Stone Identification & Origin Report: includes all information provided on the Identification Report plus the geographic origin of the stone, if determinable.
