Tanzanite 12.74ct ALGT Report Number 74679467 Shape: Pear Mixed Cut No. of Stones: 1 Color (Transparency): Intense Purplish Blue (Transparent) Treatment: Tanzanite is commonly heated at low temperatures. Indication of oiling present. Additional information: Highly magnified pictures taken with a macro lens intended to show any imperfections less visible to the naked eye. Refer to the measurements for actual size