7.93 Ct. Topaz from Brazil

This exquisite transparent blue topaz from The Natural Gemstone Company weighs 7.93 carats, with elegant pear shape dimensions of 15.66 x 11.49 x 6.99 millimeters, and it presents a mixed brilliant cut that has been executed to maximize scintillation and visual depth. The gem carries a clarity grade described as very very slightly included evaluated at eye level, indicating that its internal characteristics are exceptionally minimal and do not interfere with the gem's transparency or light performance when worn. The color is of medium intensity, a balanced, appealing blue that is neither washed out nor overly dark, and the polish is excellent, delivering crisp facet junctions and a bright, reflective surface. As part of our transparent disclosure, this topaz has been enhanced by irradiation, a widely accepted and stable treatment used to produce and intensify blue in topaz, and the piece traces to Brazil, a source renowned for producing high quality topaz specimens.

To appreciate this topaz fully, it helps to understand how such stones are formed over geological time scales. Topaz originates in fluorine rich pegmatites and in cavities within igneous rocks, where silica and aluminium interact with fluorine bearing fluids during the late stages of magma crystallization. Millions of years ago, deep within the crust, pockets of volatile rich fluids concentrated elements into small cavities, and as the temperature and pressure slowly changed, aluminium and fluorine combined with silicon to grow topaz crystals. Over successive cycles of cooling and mineral deposition, these crystals developed clarity and crystalline integrity, their prismatic structures forming the base for later faceting. The pockets that hosted this particular gem are located in Brazil, where tectonic stability and prolonged cooling regimes allowed well developed crystals to reach notable sizes. Natural topaz commonly forms colorless or pale in tone, and the striking blue that collectors prize is frequently created after extraction through controlled irradiation and subsequent heat treatment, processes that alter electron arrangements to produce stable blue color centers while preserving the stone’s hardness and sparkle.

From a gemological standpoint, this 7.93 carat pear shaped topaz offers a compelling combination of optical performance and practical wearability. Topaz rates eight on the Mohs scale, making it durable enough for most ring settings with appropriate care, yet its perfect cleavage planes require attentive setting choices to avoid impact along cleavage directions. The mixed brilliant cut is chosen to balance fire and brilliance, by combining brilliant style facets on the crown that scatter light and step influenced pavilion facets that provide depth and contrast, the result being lively scintillation and a pleasing window to the gem’s internal clarity. The clarity evaluation at eye level as very very slightly included means inclusions are minute and do not distract to the naked eye, a condition that increases value especially in larger stones where clarity is often compromised. The medium color intensity translates into excellent subjective saturation under a range of lighting conditions, appearing lively in daylight and retaining presence under artificial illumination, aided by the excellent polish which ensures clean reflections and sharp facet outlines.

For the educated buyer, the value proposition of this gem rests on measurable attributes and responsible disclosure. The weight of 7.93 carats and the substantial dimensions make this an unusually large, wearable topaz for a pear shape, a size at which color and clarity become especially significant for both aesthetics and market value. Origin from Brazil adds provenance, as Brazilian deposits have produced many of the topaz specimens recognized in the international market for their crystal quality. The irradiation enhancement applied to this stone is permanent and stable under normal wearing conditions, and we provide full disclosure of that treatment because transparency in treatment history is fundamental to valuation and trust. At The Natural Gemstone Company we document such details and can supply supporting lab reports on request, making this gem suitable for collectors, designers, and buyers who seek both beauty and verifiable information. With appropriate setting choices such as protective prongs or a bezel for rings, and routine care that avoids hard knocks and prolonged exposure to extreme heat, this blue topaz will offer lasting visual appeal and a strong combination of affordability and presence compared to rarer blue gems. We invite inquiries about certification, custom mounting options, and any technical details you require to make an informed purchase.