6.36 Ct. Yellowish Green Prasiolite from Madagascar

One transparent 6.36 carat round shape yellowish green prasiolite is presented with dimensions of 12.39 by 11.94 by 7.61 millimeters, a mixed brilliant cut, and a clarity grade of eye clean evaluated at eye level. The stone exhibits medium color intensity with a yellow green hue that remains lively under a range of lighting conditions, and the polish is graded excellent. This prasiolite has been heat treated to achieve and stabilize its color, and its origin is Madagascar. The Natural Gemstone Company documents these specific attributes, providing a clear record of weight, dimensions, cut style, clarity grading, color intensity, enhancement, and provenance for future reference, appraisal, and authentication.

The mixed brilliant cut combines facets oriented for economical material yield with a faceting scheme that emphasizes light return and scintillation. The crown and pavilion facet arrangement in this cut produces balanced brilliance and a pleasing pattern of flashes across the table and crown, while the round outline maintains classic symmetry. With eye clean clarity at normal viewing distance, the prasiolite presents an open window to its internal features, allowing the mixed brilliant design to maximize apparent brightness. The excellent polish contributes to crisp facet junctions and smooth surface reflection, which in turn supports consistent performance in both direct and diffuse light, making the gem visually adaptable for daytime and evening wear.

As a variety of quartz, prasiolite benefits from a Mohs hardness of about seven, offering a practical balance between wearability and ease of care for a fine jewelry setting. Heat treatment is a common and stable enhancement for prasiolite, achieved by controlled thermal processes applied to suitable quartz material to develop or refine green tones, and the result is generally permanent when the stone is used within standard jewelry care practices. The Madagascar origin contributes to traceable supply history, and stones from this region are often appreciated for their attractive color and clean material. Recommended care practices include routine cleaning with warm soapy water and a soft brush, avoidance of prolonged exposure to strong acids or harsh chemicals, and careful handling to minimize hard knocks against metal settings or other gemstones.

A gem of this size, shape, and overall quality is well positioned to become a generational heirloom. The round outline and mixed brilliant cut are enduring design choices that adapt well to different setting styles and fashion cycles, supporting long term desirability. For durability and preservation, a secure setting such as a well proportioned bezel or a robust prong mount can protect the girdle and periphery, while allowing light to interact with the crown and pavilion. Documentation from The Natural Gemstone Company, including detailed measurements, treatment disclosure, and origin information, will help preserve provenance and assist future appraisals. Routine professional inspections and occasional repolish when needed will maintain facet crispness and surface condition without compromising the stone, and the stone can be remounted or repurposed by successive generations to reflect evolving tastes while keeping the original material intact. Taken together, the combination of substantial carat weight, stable enhancement, practical hardness, classic cutting style, and documented provenance gives this prasiolite the attributes necessary to serve as a wearable and meaningful family heirloom.