Algt Colored Stone Report # 94010755 Report Date: 17 January, 2024 Identification Species ................................................................................ Natural Zoisite Variety ............................................................................................ Tanzanite Description Shape & Cutting Style ............. Rectangular Cushion, Mixed Cut Measurements ............................................ 22.34 x 17.37 x 9.66 mm Carat Weight ........................................................................... 39.20 Carat Color ............................................................................ Deep Violetish Blue Transparency ................................. Transparent - Semi-transparent Additional Grading Characteristics Suggested Origin ....................................................................... Tanzania Comments Tanzanite Is Commonly Heated At Low Temperature To Improve Its Color. There Is Currently No Scientific Method Available To Determine Whether This Gemstone Has Been Enhanced Or Not. Moderate amount of clarity enhancement in fissures. Clarity enhancement has become a common practice in trade for many gemstones. This enhancement is reversible at any time.