Natural Tanzanite - 1.78 Carat - Octagon Cut - Intense Purplish Blue - orginal ALGT report and sealed ALGT Report Number: 15361732 Antwerp, 17.11.2025 Species: Natural Zoisite Variety: Tanzanite Shape: Modified Octagon, Step Cut Dimensions: 8.96 x 5.96 x 3.40 mm Transparency: Transparent Color: Intense Purplish Blue Carat Weight: 1.78 Carat Additional Grading Characteristics Suggested Origin: Tanzania Tanzanite is commoly heated at low temperature to improve its color. There is currently no scientific method available to determinate whether this gemstone has been enhanced or not. Delivery: Registered shipping with insurance and tracking number, Perfectly suited as an investment, collector's item or for use in a jewellery setting. Sealed and original ALGT Report Num. 15361732.