Trichroic Tanzanite Parcel
Truly a unique and rare gemstone. Unheated Tanzanite
This batch of tanzanite (along with the larger stones also available) is some of the most intriguing and eye catching rough I have seen available. Mined in the Mererani Hills in Northen Tanzania, this unheated Tanzanite exhibits both trichroism and colour zoning. They cut into gems that show a virtual kaleidoscope of colour. If you prefer, heat in a kiln will usually normalize the colour zoning and leave a purple/teal dichroic stone. These stones have some cob marks and inclusions towards the outer of the stone, but they will all cut out.
This stone was cut from the same parcel of rough.
Average stone size of 7ct.