algt colored stone identification report identification species .......................................................................................................... natural topaz variety .................................................................................................................. blue topaz description shape & cutting style ......................................................................... oval, mixed cut measurements .................................................................. 20.24 x 16.23 x 10.91 mm carat weight ................................................................................................... 29.00 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. 23 january, 2026 47424555