Natural Swiss Blue Topaz 26.88 ct – Octagon Cut, Certified

This 26.88 carat natural Swiss Blue topaz from Brazil reveals a vivid and saturated blue hue, cut into a refined octagonal emerald shape measuring 18.90 × 15.00 × 9.70 mm. With eye clean clarity, the gemstone offers superb brilliance and transparency, while the step-cut faceting emphasizes its depth and elegance. Its striking Swiss Blue shade has been achieved through irradiation, a safe and industry-standard treatment used for all blue topaz varieties. Certified by an independent gemological la