7.04 Ct. Bluish Green Prasiolite from Brazil

One transparent 7.04 carat oval prasiolite, measuring 13.92 x 11.45 x 7.89 mm, presents a rare combination of scale and optical refinement. The stone is faceted to a mixed brilliant design, where a well proportioned brilliant crown is paired with a carefully configured pavilion to concentrate color saturation and optimize return of light. The faceting grid exhibits an emphasis on broad, even facet planes across the table and crown that produce broad flashes, paired with deeper pavilion facets that create controlled contrast and depth. The result is a faceted geometry that enhances the gem s bluish green hue while maintaining even tone from edge to center. Clarity has been evaluated as eye clean at standard viewing distance, so there are no visibility of inclusions that interfere with the clean window and symmetry. Surface finish is graded as excellent polish, with crisp facet junctions and consistent luster across the crown and pavilion, and the piece is sourced from Brazil and disclosed as heat treated to achieve the intense green color.

From an optical and color grading perspective this prasiolite is notable for its intense color intensity and for the bluish green balance that reads as a deep, saturated green under neutral daylight. Quartz has inherently low dispersion, therefore the visual appeal of this piece depends primarily on hue saturation and facet architecture rather than on fire. The mixed brilliant approach is intentionally used to maximize scintillation and to create a lively face up presentation that draws attention to the saturated bluish green rather than to spectral flashes. Because the gem is eye clean and well polished, light transmission is efficient which increases perceived depth and richness. Exact facet symmetry and well controlled pavilion angles contribute to balanced light return and to a stable face up color, qualities preferred by experienced buyers who evaluate gems by the interaction of cut and color rather than by gimmicked visual effects.

Practical considerations for lifetime use and for elevating this stone to generational heirloom status focus on durability, care and appropriate mounting. As a quartz variety this prasiolite registers at 7 on the Mohs scale, offering good resistance to everyday wear while remaining softer than traditional hard stones such as sapphire or diamond. For permanent jewelry where the stone may be subject to incidental knocks, a protective setting is recommended, with a full bezel or a bezel combined with partial high prongs to shield the girdle and reduce edge chipping risk. Heat treated coloration in prasiolite is generally stable under normal wearing conditions, however prolonged exposure to intense heat or to direct, prolonged strong light may alter saturation over many years. For that reason avoid repeated steam treatments and avoid placing the stone in environments with high thermal stress. Routine maintenance should include periodic inspection of the setting, gentle cleaning with warm water and mild detergent, and professional polishing or repolishing if surface abrasion becomes noticeable. The heat treatment will not compromise standard cleaning protocols when performed with care and professional oversight.

To become a true generational heirloom, a gemstone must combine technical quality, documented provenance, considered design, and a plan for stewardship. This Brazilian prasiolite provides the technical foundation, with an above average carat weight, precise mixed brilliant faceting, eye clean clarity and excellent polish. The Natural Gemstone Company accompanies this piece with full treatment disclosure and origin attribution to Brazil, documentation that increases its value to future owners and to appraisers. For mounting we recommend classic settings that transcend trends, such as a low profile bezel in 18 karat yellow or white gold, or a refined four prong platinum solitaire that allows the oval silhouette and facet play to remain visible while securing the stone. Engraving or family record provenance can be combined with professional appraisal and written care instructions to create a dossier to be passed between generations. If future tastes change the prasiolite s substantial dimensions and clarity make it suitable for re-cutting or re-setting with minimal compromise to beauty. With proper setting, conservative care and documented provenance provided by The Natural Gemstone Company, this prasiolite becomes not simply an object of contemporary beauty, but a durable, certifiable jewel designed to be worn, cared for and enjoyed across decades and then passed on as a meaningful family heirloom.