5.62 Ct. Green Prasiolite from Brazil

This 5.62 carat round prasiolite from The Natural Gemstone Company is a precisely executed faceted gem, measuring 11.37 by 11.43 by 7.76 millimeters, and exhibiting the measured proportions of a well-optimized mixed brilliant cut. The cutting design combines a brilliant-style crown with a modified pavilion geometry to balance lively scintillation with saturated color return. The stone shows medium color intensity in a clean, grassy green typical of heat-treated prasiolite from Brazil, and its clarity is graded as eye clean at normal viewing distance. The surface finish is rated excellent, with crisp facet junctions and consistent symmetry, producing a visually flawless presentation even though internal characteristics are consistent with an eye-clean grade. Heat treatment has been employed to reliably develop the green hue, and the origin of the rough is Brazil, a provenance known for stable color when properly heated.

Optically the mixed brilliant proportions are tuned for maximum light performance given the gem size and material refractive properties. The measured depth proportion of approximately 68 percent yields a strong return from the crown and a broad, well defined table which generates a central star pattern under direct lighting while the surrounding pavilion facets create contrast and dynamic facet-to-facet flash. The excellent polish minimizes surface diffusion and maintains sharp, mirror-like facet planes so that light is transmitted and reflected with minimal loss, enhancing both brilliance and transparency from every viewing angle. Because the gem is transparent and eye clean, light transmission is unobstructed, allowing faceted geometry to control the balance of white brilliance and saturated green bodycolor. In practical terms this means the prasiolite will exhibit consistent color and lively scintillation when set in either open prong or bezel designs, and the mixed brilliant cut mitigates the appearance of dark windows while preserving a broad table aperture for visual impact. For collectors and designers seeking technical refinement and reliable optical performance, this prasiolite represents a finely crafted example of proportion, polish and color management, offered by The Natural Gemstone Company.