algt colored stone identification report identification species .......................................................................................................... natural topaz variety .................................................................................................................. blue topaz description shape & cutting style ......................................................................... pear, mixed cut measurements .................................................................. 23.32 x 17.83 x 13.63 mm carat weight ................................................................................................... 39.46 carat color ................................................................................................................... intense blue transparency .................................................................................................. transparent additional grading characteristics trade color name ............................................................................................ swiss 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. 30 june, 2025 03551778