6cry 1296

18.55ct Raw Natural Color Tanzanite Crystal

This natural unheated tanzanite crystal is like a bicolor, as towards the termination there is much richer violet/blue color than the base of the crystal. This crystal weighs 18.55 carats and measures 20mm x 9.7mm x 9mm. This crystal is unheated and shows the trichroic colors in the dichroscope.