77.44 Ct. Topaz from Brazil

This transparent Swiss blue topaz offered by The Natural Gemstone Company is a remarkable single piece weighing 77.44 carats, presented in a round shape with precise dimensions of 25.24 x 25.18 x 16.95 mm, and executed in a mixed brilliant cut to optimize both scintillation and face up spread. The stone displays a vivid color intensity, an eye clean clarity grade evaluated at eye level, and an excellent polish that produces crisp facet reflections and lively brilliance. This topaz has been enhanced by irradiation, a well established and stable treatment used to produce the saturated Swiss blue hue commonly sought after by collectors and designers, and its documented origin is Brazil, a historic and high quality source for gem topaz. From a gemological perspective topaz is a durable gem, with a hardness of about 8 on the Mohs scale, and the clarity and cut of this specimen make it particularly suitable for prominent jewelry applications where the large carat weight can be showcased without visible internal disruption to the light path.

For the educated buyer this gem combines measurable attributes that contribute to rarity and value, namely exceptional size for a topaz, uniform vivid color resultant from controlled irradiation, and an eye clean appearance that preserves gem transparency and light performance. Historically topaz has been used for both ornamental and talismanic purposes, prized in classical and Victorian jewelry as a stone of protection and fidelity, and Brazilian topazes have long supplied the global market with material favored for table pieces and richly colored parures. This heritage informs contemporary use, where a large Swiss blue topaz becomes the centerpiece of a statement ring, a museum quality pendant, or a bespoke collection piece that references traditional amulet and signet functions while embracing modern cutting and setting techniques. The Natural Gemstone Company stands ready to provide full disclosure documentation, professional photography, and bespoke mounting services, and we recommend conservative care practices such as warm soapy water and a soft brush, avoidance of sudden thermal shock and harsh chemicals, and professional appraisal and insurance to protect this exceptional, historically resonant gemstone.