One 2.39 carats oval tanzanite, violet blue exceptional (20%/80%) more blue color, VSI clarity, cut grade good to very good, measuring 7.1 mm wide, 9 mm long, 5.3 mm deep; with good polish and good symmetry. The overall quality rating of this tanzanite is 925 out of 1000. Tanzanite is heated to enhance color. Video link
https://youtu.be/pfyC631JlpYting.