4C Claimant Grading System
All our precious stones are examined and verified by a registered diamond valuer and accredited gemmologist from the German Gemmological Institute in Idar-Oberstein (www.dgemg.com). Each stone which is purchased comes with its own certification of authenticity from an accredited expert in the field.
We use the 4 Cs Claimant Grading System on our Tanzanite gemstones: Carat, Clarity, Color and Cut.
Carat (Karat)
The sizes of our gemstones range from 2 carats to our exclusive sizes of 42 carat and over.
Clarity (Klarheit)
Our Tanzanite gemstones are absolutely ‘eye clean’.
Color (Farbe)
The dark blue gemstones have a pleochroism (multiple color reflection) of the colors marine blue, green-yellow, magenta, and purple to red-violet.
