1.83ct 8×6.6mm VVS Oval Natural Violetish Blue Tanzanite. 8.04 x 6.62 x 4.41 mm. The item "Certified 1.83ct 8x6.6mm VVS Oval Natural Violetish Blue Tanzanite Zoisite #116" is in sale since Friday, May 10, 2019.This item is in the category "Jewellery & Watches\Loose Diamonds & Gemstones\Tanzanite". The seller is "diamonds_gems" and is located in Cornwall. This item can be shipped worldwide.