Certificate Date 19/05/2026 Certificate Number 1830017740 Identification Natural Topaz Shape and cutting style Trillion Mixed Cut - Measurements (in mm) 19.95 x 19.86 x 13.68 - Grading results Weight (in carat) 37.1 ct Transparency Transparent Color Blue Comments Topaz is commonly treated by heat and/or irradiation to improve its color. There is currently no scientific testing method available to disclose such treatment.