40.24 Ct. Topaz from Brazil

This 40.24 carat oval Swiss blue topaz presents precise proportions at 23.50 x 18.90 x 12.70 mm, executed in a mixed brilliant cut that combines a well judged brilliant crown with a faceted pavilion optimized for return of light. The cutter has balanced crown height and pavilion depth to emphasize broad flash illumination and controlled scintillation across the table, the excellent polish enhances facet to facet reflection, and the overall symmetry maintains a pleasing oval outline with a stable girdle profile. Color is vivid, exhibiting the saturated aqua to electric blue that defines Swiss blue topaz, the irradiation enhancement responsible for this tone is stable under normal wear, and the stone displays the typical low dispersion of topaz with color driven brilliance rather than fire. The eye clean clarity grade reflects that the gem is free of visible defects at typical viewing distances, making it particularly suited to open settings where maximum color and light performance are desired.

Under magnification the internal features of this Brazilian topaz provide valuable fingerprint like identifiers, minute healed feathers, tiny pinpoint crystals, growth zoning and fine tubular inclusions aligned with crystallographic directions are present as natural signatures of formation and cutting. These inclusions do not detract from the gem at eye level, instead they serve as microscopic fingerprints that confirm natural origin and provenance when examined by a trained gemmologist with immersion and appropriate lighting. The Natural Gemstone Company documents these internal characteristics for customers who require traceable identification, and we note that the irradiation enhancement used to produce the Swiss blue hue is a common and accepted practice for topaz sourced from Brazil. For setting and care we recommend bezel or prong environments that protect the girdle and pavilion, routine cleaning with warm soapy water and a soft brush, and avoidance of prolonged exposure to extreme heat or aggressive chemicals. This topaz is a technically refined specimen, offering a combination of substantial carat weight, expert cutting, vivid color, and documented internal features that appeal to collectors and designers seeking both aesthetic impact and verifiable gemmological character.