5.06 Ct. Yellowish Green Prasiolite from Brazil

One transparent, round shape, yellowish green prasiolite, weighing 5.06 carats, offers a clear and straightforward specification for professional appraisal and design use. The stone measures 11.23 x 11.24 x 7.41 mm, and is faceted with a mixed brilliant cut that balances a well defined table with a faceted pavilion. The clarity grade is very slightly included, evaluated at eye level, indicating the presence of minor internal characteristics that do not materially detract from the gem's overall appearance. Color is described as medium intensity, producing a fresh yellowish green presence without veering into overly dark or overly pale territory. The polish is excellent, ensuring that facet junctions and surfaces exhibit clean reflections and unrestricted light return. The stone has undergone heat treatment, a common and stable enhancement for prasiolite, and its origin is Brazil, a recognized source for quality green quartz. The Natural Gemstone Company provides this description to support accurate selection, mounting, and valuation.

The 5.06 carat weight is a primary determinant of this prasiolite's rarity and market value, especially when considered in conjunction with its transparent quality and round mixed brilliant cutting. Prasiolite, a green variety of quartz, is more commonly encountered in sizes below five carats when well cut for faceted jewelry, therefore a specimen just above five carats occupies a less crowded segment of the market. Weight influences value on two levels, the first being the per carat price curve that typically increases as size grows, and the second being the practical utility of the material for high impact jewelry applications. In straightforward terms, a 5.06 carat prasiolite presents a larger face up area and greater visual presence than stones of 1 to 3 carats, which both elevates desirability for center stone use and reduces competition from smaller, more common parcels. The recorded dimensions are consistent with the weight, taking into account the specific gravity typical of quartz family minerals, which is approximately 2.65, and thereby confirm the substantial material contained within these dimensions.

The cutting style and proportions play a central role in how this weight reads once set, and the mixed brilliant cut applied to this round prasiolite was chosen to optimize the balance between scintillation and color presentation. A mixed brilliant cut places emphasis on a faceted crown that disperses light across the table, while the pavilion facet arrangement enhances depth of return and contrast, which is particularly useful for medium intensity green yellow tones to avoid appearing washed out under varied lighting. The depth of 7.41 mm in relation to the roughly 11.23 mm diameter yields proportions that favor both brilliance and durability, preventing excessive shallow or deep pavilion profiles that could otherwise diminish visual performance. Excellent polish ensures that facet surfaces remain sharp and reflective, an important complement to the clarity grade of very slightly included, because faint internal features are not emphasized when facet surfaces provide crisp light return. The result is a stone that exhibits lively internal movement and an even color distribution across the table, attributes that are amplified by the larger carat weight.

From a practical and procurement perspective, the 5.06 carat Brazilian prasiolite is well suited for a variety of settings and design approaches, and weight is a decisive factor in those choices. In ring applications, the substantial face up size presents as a confident center gem for solitaire and halo designs, while pendants and bespoke pieces gain proportional balance without requiring auxiliary stones to achieve visual impact. Jewelers should consider secure settings given the diameter and table size, with prong settings providing maximum light exposure, and bezel settings offering added security and protection for active wearers. The presence of heat treatment should be noted in documentation, as it is a stable enhancement and standard practice to disclose. The Natural Gemstone Company supplies this stone with full specification to support responsible design and accurate valuation, and information on origin and treatment is provided to assist gemologists, appraisers, and clients in making informed decisions. Overall, the combination of a 5.06 carat weight, transparent clarity, mixed brilliant cutting, and Brazilian provenance defines this prasiolite as a notable example within the market segment for green quartz gemstones.