4.83 Ct. Bluish Green Prasiolite from Brazil

This 4.83 carat oval prasiolite presents a compelling combination of size, color, and cutting precision, offered by The Natural Gemstone Company. The stone measures 12.45 by 10.69 by 7.14 millimeters, yielding a depth proportion of approximately 61.7 percent, a balance that supports both strong color saturation and effective light return. The cutting style is faceted, executed as a mixed brilliant cut, with pavilion facets optimized to maximize scintillation while crown facets are proportioned to preserve face up color, the overall result being a stone that displays intense bluish green tones across the table and crown. Clarity is graded as eye clean at standard viewing distance, which, when combined with an excellent polish, ensures unobstructed transparency and crisp facet junctions, allowing the mixed brilliant architecture to perform without interference from surface or internal blemishes. The piece originates from Brazil, a source known for high quality quartz material, and it has been heat treated to achieve and stabilize the attractive bluish green prasiolite hue, a standard and accepted enhancement that produces consistent color while retaining the natural crystal structure and durability of quartz.

The 4.83 carat weight is central to the character and value of this prasiolite, because weight in quartz species produces a nonlinear effect on rarity and pricing, larger clean and richly colored specimens being significantly less common than smaller material. At just under five carats, this oval sits in a bracket where per carat value increases, because cutters must balance retention of weight against removal of inclusions and optimization of proportions, a balancing act that often requires sacrificing yield to achieve eye clean clarity and ideal optical performance. The dimensions provided reflect a generous face up presence, with the oval outline offering an expansive visual table that enhances perceived size, and the measured depth allows for a saturated color presentation without appearing dark when mounted. From a lapidary perspective, producing a mixed brilliant oval of this scale and quality requires precise control of pavilion angles and girdle thickness, consistency of facet alignment, and a high quality polish to prevent light leakage, all factors that compound in labor and expertise as carat weight increases, contributing materially to the market value of the gem.

For design and provenance considerations, The Natural Gemstone Company documents the heat treatment and Brazilian origin, and the combination of 4.83 carats, intense bluish green color, eye clean clarity, and excellent polish makes this prasiolite an exceptional choice for a primary center stone in a ring, a pendant, or bespoke jewelry where a single substantial gem is desired. The quartz hardness and stable crystalline structure following heat treatment render the stone suitable for everyday wear when set with appropriate protection, the oval shape lending itself to prong settings that maximize light exposure, or bezel settings that emphasize durability while still showcasing the vivid face up color. For jewelers and collectors who value technical execution, the mixed brilliant faceting on an oval of these dimensions provides a measured balance between brilliance and color saturation, an outcome achieved through deliberate proportioning and finish work, and an outcome that distinguishes this 4.83 carat prasiolite as a rare and commercially compelling piece in the marketplace.