One 1.88 carats oval tanzanite, blue violet vivid color, 10X LOUPE CLEAN clarity, cut grade very good, measuring 6.9 mm wide, 9 mm long, 4.7 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 68%. The overall quality rating of this tanzanite is 918 out of 1000. Tanzanites are color enhanced by heating. sold to trisha Smith