5.55 Ct. Bluish Green Prasiolite from Brazil

This 5.55 carat oval prasiolite presents as a transparent bluish green gem with dimensions of 13.34 x 10.65 x 7.07 mm, a mixed brilliant faceted execution, and an eye clean clarity grade as evaluated at eye level. The mixed brilliant cut places a brilliant facet arrangement on the crown and a complementary pavilion structure to balance surface scintillation with depth of tone, and the excellent polish enhances table brightness and facet definition. Origin Brazil, an established source for commercial and collectible quartz varieties, is disclosed, and the stone has been enhanced by irradiation to develop and stabilize its bluish green hue. At 5.55 carats the gem weighs approximately 1.11 grams, and as a quartz group mineral it exhibits a refractive index in the range of 1.544 to 1.553 and a Mohs hardness of 7 which supports everyday wear with appropriate care. The intense color intensity and transparent body allow the stone to display lively internal reflections under direct light while maintaining a consistent saturated appearance in mixed lighting environments.

In a custom piece the oval proportions and strong color presence of this prasiolite favor designs that emphasize the central stone while using accents to either contrast or harmonize with its bluish green character. For a classic solitaire ring or a pendant the stone performs exceptionally when set in a four or six prong mounting that allows light to enter through the pavilion and maximizes brilliancy, and a low profile bezel may be selected to emphasize durability while retaining the stone as the focal point. For contrast the addition of calibrated round brilliant diamonds or white sapphires in a halo or as shoulder stones will enhance perceived brightness and provide a crisp, colorless counterpoint to the prasiolite. To create a tonal ensemble consider pairing with aquamarine or teal tourmaline side stones which will reinforce the cool color family, or use warm accents such as morganite or champagne diamonds to introduce complementary warmth and visual tension. Tapered baguette side stones provide a clean architectural line that lengthens the visual axis of the oval, while petite trillion cut accents offer a modern triangular geometry that frames the center and adds controlled flash. The stone dimensions yield a prominent table and substantial depth which is suitable for three stone ring proportions, elongated halo pendants, or a centerpiece in a multi gem bracelet panel, and the eye clean clarity supports open back settings so that the saturated bluish green remains unobstructed.

Practical considerations for fabrication and ongoing care are straightforward given the material properties and enhancement status. The irradiation treatment used to produce the prasiolite color is a stable enhancement when not exposed to extreme heat or prolonged high energy radiation, and standard jewelry soldering and setting practices should avoid exposing the stone to sustained temperatures above typical working ranges. Cleaning with warm soapy water and a soft brush is effective and safe, and professional ultrasonic or steam cleaning should be avoided if there is any concern about previous treatments or inclusions that are not visible to the unaided eye. The stone will respond well to settings that protect the girdle and pavilion from knocks while allowing light access to the crown. All attributes including carat weight, measurements, cut description, clarity grade, polish, origin Brazil, and the irradiated enhancement are documented by The Natural Gemstone Company to support transparent communication with designers and clients. For custom projects The Natural Gemstone Company can supply detailed photos and grading information to guide setting proportions and side stone selection, enabling precise integration of this intense bluish green prasiolite into a considered and long lasting custom piece.