1.74 Ct. Precious Topaz from Brazil

This gem is a transparent 1.74 carat pear shape brownish orange precious topaz, presented at dimensions of 11.53 x 6.86 x 3.02 millimeters, exhibiting a length to width ratio of approximately 1.68 to 1, and executed in a mixed brilliant cut to balance color saturation with scintillation. The mixed brilliant design in this piece features a brilliant style pavilion to maximize internal light return and a faceted crown that incorporates modified step and kite facets to control color distribution across the table and shoulders, a combination selected by the cutter to enhance the medium color intensity while preserving weight from the Brazilian rough. The girdle is faceted to a thin to medium profile, which, together with the precise table proportion and the cutter s attention to symmetry, produces a balanced face up appearance and reliable optical performance under multiple lighting conditions. Polish is graded excellent, and you will note razor sharp facet junctions and uniform facet planes under loupe inspection, a testimony to the meticulous lapidary work that characterizes offerings from The Natural Gemstone Company.

Clarity is reported as very slightly included when evaluated at eye level, and these internal characteristics are best understood not as imperfections but as unique identifiers that authenticate provenance and natural growth history. Under low magnification the stone reveals a population of pinpoint crystals and very fine growth tube inclusions aligned parallel to the crystallographic axis, along with isolated healed feather boundaries that are shallow and stable, features typical of Brazilian topaz. These minute inclusions produce subtle internal reflections and can act as a fingerprint for gemmological mapping, allowing experienced observers to distinguish natural, untreated material from laboratory altered stones. The distribution and morphology of the inclusions do not impede the gem s overall brilliance, and because they are generally tiny and healed, they do not compromise structural integrity, a point important for secure everyday wear in well designed settings.

Optically and physically the gem displays the characteristic attributes of topaz that informed the cutter s choices. Topaz typically has refractive indices in the neighborhood of approximately 1.609 to 1.643 and a modest birefringence on the order of approximately 0.008 to 0.010, characteristics that, combined with the mixed brilliant geometry, create crisp facet contrast and lively return of white light rather than pronounced fire, consistent with topaz s lower dispersion value. The medium color intensity of this brownish orange tone retains clarity and transparency while presenting warm body color that reads differently under incandescent and daylight sources, a versatile palette for jewelry. Enhancement is confirmed as none, making this natural hue and its inclusion suite particularly desirable in a market where irradiation and heat are commonly used to produce the more familiar blue shades. With a hardness of eight on the Mohs scale and a dense, compact crystal structure characteristic of topaz, the gem is suitable for most setting types, with prong and bezel mounts recommended to protect the tapered tip of the pear. The Natural Gemstone Company affirms the origin as Brazil, and we stand ready to provide additional photomicrographs, detailed gemmological documentation, and guidance on mounting and care to ensure this stone performs beautifully as a centerpiece in a bespoke commission or as part of a curated collection.