On Hold for David V. Violet Blue Oval Tanzanite Gemstone 2.37 CaratsTo be set in 14k white gold ring pictured, size 8. One 2. 37 carats oval tanzanite, violet blue exceptional color, FLAWLESS TO VVS clarity, cut grade very good, measuring 6. 8 mm wide, 9 mm long, 5. 7 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 83. 8%, table width 52. 6%. The overall quality rating of this tanzanite is 975 out of 1000. Tanzanite is color enhanced by heating.