7.34 Ct. Bluish Green Prasiolite from Brazil

This is a transparent bluish green prasiolite of exceptional presence, weighing 7.34 carats, presented in a classic round shape with dimensions of 12.74 by 12.83 by 8.17 mm. The cutting style is faceted, executed as a mixed brilliant cut to combine the scintillation and fire of a brilliant crown with the depth and color saturation emphasized by a faceted pavilion. The stone is eye clean when evaluated at eye level, which allows uninterrupted observation of the gem body and internal light dynamics. Color intensity is classified as intense, the polish is excellent, and the overall finish exhibits crisp facet junctions and precise symmetry. The piece has undergone standard heat treatment to achieve the stable bluish green hue, and its material origin is Brazil, supplied through our vetted channels at The Natural Gemstone Company.

From a lapidary perspective this prasiolite demonstrates meticulous cutting choices that favor both optical performance and wearability. The mixed brilliant cut in a round outline optimizes the balance between light return and color saturation. The crown faceting generates distinct scintillation and star facets that animate the table face, while the pavilion faceting creates controlled light leakage that deepens the perceived color toward the pavilion girdle junction. The cutter has maintained proportional crown height and pavilion depth to preserve brilliance without sacrificing the intense bluish green hue, and the measured dimensions deliver a substantial face up size for its carat weight. The excellent polish indicates high lapidary skill, yielding smooth facet planes that enhance internal reflection, and the tight symmetry minimizes light leakage that could otherwise dilute color uniformity.

Material properties are relevant for both technical appraisal and practical use, and this prasiolite performs well on both counts. As a green variety of quartz, it carries the durability associated with the quartz group, with a Mohs hardness of about 7, which translates to good resistance to everyday abrasion, suitable for most ring and pendant settings. The refractive index falls in the approximate range of 1.54 to 1.55, producing moderate brilliance consistent with quartz, and the specific gravity is typical for the species, contributing to the stone feeling weighty and substantial in hand and in set pieces. The declared enhancement is heat treatment, a widely accepted practice for prasiolite, which yields a stable, even color without the use of dyes or surface coatings. When evaluating clarity and cutting, the eye clean grade assures that the faceting displays uninterrupted internal light paths, which enhances both perceived transparency and color depth.

Ethical sourcing and supply chain transparency are integral to the selection of this specimen, and The Natural Gemstone Company emphasizes responsible procurement practices for Brazilian prasiolite. This piece originates from Brazil and was obtained through partners who adhere to local mining regulations and who maintain documentation for export and chain of custody. Our sourcing prioritizes artisanal and small scale operations that implement progressive labor practices, and where possible we select lots produced with minimized environmental impact through targeted excavation rather than large scale destructive methods. Heat treatment has been fully disclosed to ensure full transparency, and we can provide provenance information and supporting documentation on request for clients who require it for their due diligence. The Natural Gemstone Company regards traceability as a key component of value, and we work to ensure that each gemstone offered reflects both geological beauty and ethical awareness.

For the conscious consumer assembling a considered collection, this prasiolite occupies a versatile and responsible position. Its 7.34 carat weight and round mixed brilliant execution make it ideal for a statement ring, a bold solitaire pendant, or a prominent centerpiece in a bespoke commission where the wearer seeks a balance of durability, color intensity, and ethical provenance. Styling recommendations favor settings that protect the girdle and pavilion without overly obscuring the table, therefore low bezel walls or secure prong settings with protective gallery work are suitable. Care instructions include avoiding exposure to harsh chemicals and prolonged thermal shock, noting that the stone has been heat treated and should not undergo additional high temperature processes, ultrasonic cleaning may be acceptable for quartz in many cases but should be avoided if the setting contains porous or fracture filled materials, and routine cleaning with mild detergent and a soft brush will preserve polish and brilliance. For buyers prioritizing low impact sourcing, stable enhancement disclosure, and technical excellence in cut and finish, this prasiolite from Brazil offered by The Natural Gemstone Company represents a considered addition to a mindful and well curated collection.