GRA (Gemological Research Association) is an independent institution exclusively committed to professional moissanite archiving and data recording services.
GRA has no connection, affiliation, authorization or cooperation of any kind with GIA or other gemstone authentication institutions. The English abbreviation of GRA is independently named and shall not be regarded as an act of imitation, confusion or improper association with any third‑party gemstone certification organizations.
In the early stage of the industry, there was no standardized professional archiving system specifically for moissanite, resulting in the lack of unified parameter standards and traceable credentials in the market. To fill this industry gap, GRA was established.
With more than ten years of in‑depth accumulation in the moissanite industry, GRA has long focused on moissanite parameter filing, physical data recording and stone‑certificate traceability management. At present, GRA has formed a widely recognized universal file specification and industry data standard for moissanite worldwide.
Official Clarifications:
1.GRA certificates serve solely as exclusive data archive vouchers for moissanite, recording physical parameters including size, dimension, cut, color and clarity of submitted samples for archiving purposes only.
2.GRA does not provide diamond identification services or gemstone valuation services. GRA certificates hold no asset‑valuation value and shall not be used as reference for investment, resale or market pricing.
3.The sole purpose of GRA certificates is moissanite identity filing, one‑stone‑one‑certificate binding and product traceability recording.
4.GRA operates completely independently from all diamond and colored gemstone testing institutions including GIA, IGI and NGTC, with no affiliation or system interconnection.
5.All parameters recorded on certificates represent only the archival data of tested samples at the time of inspection, for reference only, and do not constitute any commodity value promise, quality guarantee or lifetime warranty.
All website content, archive records and certificate information are for reference and archiving only. GRA shall not be held legally liable for any direct or indirect losses arising from commercial transactions, valuation behaviors or investment decisions made by users based on this website or GRA certificate documents.
By accessing and using this website and relevant certificate archives, users shall be deemed to have fully read, understood and unconditionally accepted all terms of this disclaimer.
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GRA REPORT CHECK
Use your GRA report number to look up your report results.
GRA (Gemological Research Association) is an independent institution exclusively committed to professional moissanite archiving and data recording services.
GRA has no connection, affiliation, authorization or cooperation of any kind with GIA or other gemstone authentication institutions. The English abbreviation of GRA is independently named and shall not be regarded as an act of imitation, confusion or improper association with any third‑party gemstone certification organizations.
In the early stage of the industry, there was no standardized professional archiving system specifically for moissanite, resulting in the lack of unified parameter standards and traceable credentials in the market. To fill this industry gap, GRA was established.
With more than ten years of in‑depth accumulation in the moissanite industry, GRA has long focused on moissanite parameter filing, physical data recording and stone‑certificate traceability management. At present, GRA has formed a widely recognized universal file specification and industry data standard for moissanite worldwide.
Official Clarifications:
All website content, archive records and certificate information are for reference and archiving only. GRA shall not be held legally liable for any direct or indirect losses arising from commercial transactions, valuation behaviors or investment decisions made by users based on this website or GRA certificate documents.
By accessing and using this website and relevant certificate archives, users shall be deemed to have fully read, understood and unconditionally accepted all terms of this disclaimer.
GRA