Natural London Blue Topaz 13.23 ct – Octagon Cut, Certified

This 13.23 carat natural London Blue topaz from Brazil features a deep and sophisticated blue tone, cut into an octagon step shape measuring 16.04 × 12.04 × 7.65 mm. With eye clean clarity, the gemstone offers excellent transparency, while the precision-cut facets highlight its dramatic depth of color. Its rich London Blue shade has been achieved through irradiation, a safe and industry-standard treatment applied to all blue topaz. Certified by an independent gemological laboratory, it comes wit