6.47 Ct. Yellowish Green Prasiolite from Brazil

This 6.47 carat radiant shape prasiolite presents a balanced and deliberate geometry, reflecting the disciplined approach taken during cutting. The stone measures 11.37 by 11.15 by 7.87 millimeters, and its square radiant outline is defined by softly trimmed corners and crisp facet junctions. The faceted cutting style employs a hybrid of step and brilliant facet arrangements, producing broad, planar facets on the crown that channel light into a dense pavilion network. The result is a pronounced internal architecture where light is directed, dispersed, and returned in layered flashes. The gem is transparent, with a medium color intensity in a yellowish green hue, and maintains an excellent polish that minimizes surface diffusion and preserves the sharpness of each facet edge.

The geometric faceting of this prasiolite is expressly organized to allow maximum light play. The crown facets form a symmetrical grid that guides incident light toward the pavilion, while the pavilion facets are engineered to encourage multiple internal reflections before light exits through the table and crown, creating strong brilliance and scintillation. The central pattern displays a well defined cross like return, attributable to the precise alignment of pavilion facets with the table, which emphasizes a central focal flash when viewed face up. Secondary flashes arise from the pavilion to the crown interactions, producing a layered effect where bright, lively flashes alternate with deeper, more saturated green and yellow tones as the gem or the viewer moves. This interplay of contrast and brightness is a direct consequence of proportional planning during cutting, and it is the primary mechanism by which the stone achieves notable light performance.

Clarity and finishing further support the optical performance. The clarity is graded as very very slightly included, evaluated at eye level, indicating that inclusions are minimal and do not materially interrupt the passage of light in typical viewing conditions. The excellent polish enhances facet transparency and prevents light scatter at the surface, enabling the internal facet geometry to behave predictably. The prasiolite has undergone controlled heat treatment to refine its green tones, a common and stable enhancement method for quartz family materials, and its Brazilian provenance provides a reliable source known for producing stones with consistent crystalline clarity. Collectively, the clarity, polish, and treatment history allow the designed facet arrangement to operate with minimal attenuation, preserving both lively flashes and the integrity of the medium color intensity.

Presented by The Natural Gemstone Company, this 6.47 carat radiant prasiolite is suited to applications where facet driven light play is a priority, including solitaire rings, pendant centers, and bespoke jewelry where a pronounced optical center is desired. The square radiant shape and substantial table area provide a strong visual presence, while the trimmed corners and well proportioned pavilion create an appearance that balances fire with sustained body color. The measured dimensions and the very very slightly included clarity grade mean that the gem performs consistently under normal wear, offering repeatable scintillation and a stable, medium strength hue. The combination of geometric faceting, excellent polish, and considered heat treatment yields a prasiolite that exemplifies how precise cutting and finishing translate directly into superior light behavior, making the gem an instructive example of facet driven design and practical gemological refinement.