Tanzanite Grading Reports
The AGTA Gemological Testing Center (GTC) offers Tanzanite Grading Reports in accordance with the Tanzanite Quality Scale™. The Tanzanite Quality Scale™ is a tanzanite specific, internationally recognized tanzanite grading system developed by the Tanzanite Foundation. The Tanzanite Foundation's vision is to establish a universal standard for grading tanzanite so as to facilitate for trade and consumer confidence, encourage a more comprehensive and consistent understanding of tanzanite's qualities and rarity, as well as encourage the development of a more formalized industry.
In 2002, the AGTA selected tanzanite as a December birthstone, adding it to a list of birthstones unchanged since 1912.
The Tanzanite Quality Scale™ grades according to specific standards under the 4 C's criteria of Carat Weight, Color, Clarity and Cut. A fifth "C" stands for Confidence. Tanzanite Quality Scale™ grading certificates issued by AGTA GTC will provide the assurance that the tanzanite inspected is accurately graded, authentic and of natural origin, from the world's only known tanzanite source situated at the foothills of Mount Kilimanjaro in Tanzania, East Africa.
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| The front and reverse of the AGTA GTC Tanzanite Grading Report. Click on an image to view a high-resolution version. | |
