5.20 Ct. Bluish Green Prasiolite from Brazil

This transparent 5.20 carat oval prasiolite from Brazil, measuring 12.85 by 9.91 by 7.12 millimeters, is presented in a faceted, mixed brilliant cut that maximizes both depth and table brilliance. The stone exhibits a bluish green hue with intense color saturation and an excellent polish, attributes that together produce lively light return and a sense of depth uncommon in stones of comparable size. Clarity is evaluated as eye clean at normal viewing distance, and the material has been heat treated in line with standard industry practice to enhance and stabilize the green tone. The precision of the mixed brilliant faceting and the oval proportions render this prasiolite a balanced combination of sparkle and color concentration, qualities fully documented by The Natural Gemstone Company.

Under magnification this prasiolite reveals a subtle population of internal features that serve as its unmistakable signature, without compromising its transparency or visual appeal. Fine needle-like inclusions and very small pinpoint crystals occur in dispersed patterns, producing delicate linear highlights when the stone is rotated under light. Occasional two-phase inclusions, presenting as microscopic cavities with a liquid and vapor phase, contribute localized flashes and a softness to some facet windows, while faint healed fractures form silky veils that diffuse light in a manner that enhances the apparent color saturation. These internal characteristics are consistent with natural Brazilian prasiolite and, when viewed through a loupe or microscope, confirm the stone’s natural origin and treatment history. Rather than diminishing the gem’s quality, the inclusions create a fingerprint unique to this piece, adding depth and character that are evident to a trained eye but remain unobtrusive in normal wear. The result is a gem that combines secure identification markers with the visual clarity and brilliance desirable for fine jewelry settings.