1.54 Ct. Topaz from Brazil

This transparent 1.54 carat oval sky blue topaz measures 8.10 millimeters by 6.08 millimeters by 3.90 millimeters, a proportion that yields a length to width ratio of approximately 1.33, and a depth to average diameter ratio of about 55 percent, dimensions that produce a balanced face up spread for an elegant oval silhouette. The gem is executed in a mixed brilliant cut, where a brilliant style crown is paired with a carefully faceted pavilion to reconcile lively scintillation with strong light return. The cut weight at 1.54 carats sits comfortably within the expected density range for topaz, delivering a stone that reads larger than its weight might suggest when well set, and the oval outline affords classic versatility for both solitaire and halo mounting styles. This specimen exhibits a medium intense sky blue color, a saturation that preserves lightness and liveliness without tipping into overly dark tones, making it suitable for designs that require both color presence and day to day wearability.

In technical terms the mixed brilliant faceting on this topaz has been executed to emphasize a high degree of internal reflection, with precision of pavilion angles and crown height calibrated to maximize dispersion and scintillation for topaz, a species with relatively modest dispersion compared to gemstones such as diamond. The facet junctions and facet symmetry are consistent with an excellent polish assessment, producing crisp facet reflections and clean facet patterns that aid in the perception of depth and fire. Clarity is described as very very slightly included, evaluated at eye level, indicating that inclusions are minimal to the unaided observer, and that any natural internal features are sufficiently small and well positioned so as not to disrupt overall light performance. The gem displays excellent windowing control, with no significant areas of light leakage across the table at typical viewing distances, which confirms the practical effectiveness of the cutter in balancing pavilion depth and crown proportions to optimize brilliance.

This topaz has been enhanced by irradiation to achieve its stable sky blue tone, a standard and widely accepted treatment for blue topaz in the trade, with color stability under normal wearing conditions when properly mounted. Brazil provenance contributes appreciably to the commercial and connoisseur appeal of this stone, because Brazilian topaz sources are historically renowned for yielding large, clean crystals that respond predictably to controlled irradiation and heat protocols, and because origin can inform both market perception and the narrative of a finished jewel. The Natural Gemstone Company presents this piece as an example of meticulous lapidary craft fused with reliable enhancement practice, making it a technically refined option for designers and informed collectors who prioritize optical performance, material integrity, and documented origin. The combination of a carefully managed mixed brilliant faceting, very very slightly included clarity at eye level, medium intense color, and excellent polish, all rooted in Brazilian material, yields a gemstone that performs well under magnification and to the eye, and that will set with confidence in a variety of fine jewelry applications.