ALGT COLORED STONE IDENTIFICATION REPORT IDENTIFICATION Species .......................................................................................................... Natural Topaz Variety .................................................................................................................. Blue Topaz DESCRIPTION Shape & Cutting Style ......................................................................... Oval, Mixed Cut Measurements .................................................................. 23.30 x 17.84 x 10.86 mm Carat Weight ................................................................................................... 40.28 Carat Color ....................................................................................................................... Deep Blue Transparency .................................................................................................. Transparent ADDITIONAL GRADING CHARACTERISTICS Trade Color Name ....................................................................................... London Blue COMMENTS Blue topaz is commonly enhanced by irradiation and/or heating to improve its color. There is currently no scientific method available to determine whether this gemstone has been enhanced or not. 02 March, 2026 51846023