6.25 Ct. Bluish Green Prasiolite from Brazil

This prasiolite is a transparent, bluish green round gem weighing 6.25 carat, and it measures 11.94 x 11.87 x 8.28 mm. The stone has been faceted in a mixed brilliant style, a cutting approach that balances pavilion brilliance with a well defined crown for controlled light return. Color is described as intense color intensity, and the stone presents a clear bluish green saturation that is evenly distributed across the table and crown. Clarity is graded as slightly included when evaluated at eye level, and the inclusions are minor and do not materially interrupt the face up appearance. The surface finish is excellent polish, producing crisp facets with defined facet junctions, and the stone displays lively scintillation under standard viewing conditions. The prasiolite is an irradiated material, a routinely practiced and fully disclosed enhancement, and the origin is Brazil, a region known for producing a wide range of high quality quartz varieties.

From a gemological perspective the mixed brilliant cut gives this round prasiolite both classical elegance and modern brilliance, by combining a brilliant style pavilion with crown facets that promote color and light dispersion. The dimensions 11.94 x 11.87 x 8.28 mm align closely with the nominal round shape, and the slight variance between length and width reflects careful cutting to maximize weight yield while preserving optical performance. A clarity grade of slightly included indicates that inclusions are observable at eye level, but the specimen remains transparent and bright, and the inclusions are typically internal crystal or healed fracture features that are common in natural quartz based gems. The excellent polish enhances face up appeal, and the mixed brilliant faceting pattern produces balanced contrast and fluid movement of light across the table and crown facets. The irradiation enhancement was applied to induce and stabilize the bluish green hue, a standard and disclosed practice for prasiolite material that results in consistent and pleasing color under normal wearing conditions.

The heritage of green gemstones runs deep across many cultures, and similar green quartz varieties have historically been associated with calming, restorative, and protective uses. While prasiolite in its naturally occurring form has been relatively scarce historically, green stones have long been fashioned into personal talismans, amulets, and jewelry to symbolize renewal, balance, and heart centered intentions. In traditional lapidary practice green quartz and related green gems were set as pendants and rings, and they were often chosen for pieces intended to accompany daily life and ritual because of their approachable toughness and optical clarity. The Brazilian provenance of this piece connects it to a rich regional tradition of gem cutting and trade, where quartz varieties have been sourced, transformed, and incorporated into both local and international jewelry over many decades. This connection to broader historical uses of green stones lends contextual value, and it positions the gem within an enduring lineage of crafted, wearable gemstones.

The Natural Gemstone Company provides full disclosure of treatment and origin, and we describe this specimen accurately to support informed selection and design choices. For practical care we recommend routine cleaning with warm water and mild detergent, using a soft brush to remove accumulated dust from facet junctions, and avoiding prolonged exposure to intense heat or aggressive chemical agents to preserve color and surface integrity. Ultrasonic cleaning is generally acceptable for quartz based gems that have no significant fracture filling, however care should be taken if inclusions are present near facet junctions. When setting this 6.25 carat round prasiolite consideration should be given to protective setting styles for everyday wear, and the mixed brilliant cut lends itself to both solitaire and multi stone designs where color saturation and light return are priorities. The information provided here is intended to support an objective evaluation of the gem, and The Natural Gemstone Company stands ready to supply additional measurements, imagery, or certification details upon request.