Tanzanite*** WARNING **** THIS PRODUCT IS NOT AVAILABLE ANYMORE ***** OPGELET **** DIT PRODUKT IS NET MEER LEVERBAARLot of Tanzanite cutted, small stones. Some information on Tanzanite like in diamond trade; there are the 4 c's - Color, Clarity, Carat Weight and Cut. COLOR
Color is the most important of the 4 C's for Tanzanite quality.
COLOR GRADING SYSTEM
A term is AAA Tanzanite used by the miners to denote the very top grade of Tanzanite - the very deeply saturated exceptional stones. Only 1% of all Tanzanite is this grade.
The GIA grade for these stones you can find on the GIA website.
Clarity refers to how inclusion-free a gemstone is. The basic rule with Tanzanite is that it should be at least eyeclean but preferably loupeclean too. Top stones are loupeclean, be VVS. Any lesser clarity grade will affect the value downwards and denotes a lower grade stone.
Tanzanites exist even in the 100+ carat range but these are rare. Generally stones are in the below 1 - 10 carat range.
Tanzanites are found in a variety of shapes and cutting styles. Ovals and cushions are the most common, but rounds are also seen, as are other shapes, including emerald cuts, trillions, etc. Cabochon-cut tanzanites are not often seen.