5.23 Ct. Greenish Blue Aquamarine from Brazil

This exquisite aquamarine from The Natural Gemstone Company is a superb example of what experienced collectors seek when adding a statement gem to a high end collection, it weighs 5.23 carats and presents an emerald cut faceted shape with precise dimensions of 12.03 by 9.49 by 6.77 millimeters, its proportions produce an overall depth of approximately sixty three percent which sits well within the desirable range for step cut stones, the transparent body exhibits a refined greenish blue hue with light color intensity that reads elegant and restrained in larger settings, the clarity is graded as very very slightly included when evaluated at eye level, these small natural features are not distracting and in fact confirm the gem as a natural beryl, the polish is excellent which allows the step facets of the emerald cut to return crisp flashes of light and linear brilliance, this material has been heat treated in a standard and stable manner to enhance the blue tones, and the origin is Brazil a source noted for producing well crystallized aquamarines with clean clarity and balanced tones.

From a gemological perspective this aquamarine combines the practical durability and optical characteristics that educated buyers value, as a variety of beryl aquamarine typically shows a refractive index that ranges from 1.577 to 1.583 and a hardness that falls between 7.5 and 8 on the Mohs scale which makes it suitable for everyday wear when properly set, pleochroism in aquamarine is generally weak to moderate and in this stone the emerald cut has been chosen to emphasize color consistency and to control light return across the table, the emerald cut is a classical step cut that complements the stone clarity by providing broad facet planes that showcase the interior color and any subtle silking or inclusions in a manner that appeals to connoisseurs who prefer transparency and refined geometry over excessive brilliance, the heat treatment applied to this piece is a common and accepted enhancement that reduces greenish undertones and stabilizes the blue tone, this treatment is permanent under normal wear and cleaning conditions, full disclosure is provided and the treatment does not diminish the natural origin or intrinsic value of a well cut and well finished aquamarine from a reputable Brazilian source.

When considering why this specimen deserves a place in a high end gemstone collection it is useful to weigh size proportion and provenance together, at 5.23 carats with clean eye level clarity and an excellent polish, this stone offers a rare combination of wearable size and collector quality that is not often encountered in the market, aquamarines of this caliber from Brazil carry a respected provenance among dealers and designers because Brazilian deposits often yield crystals with sound clarity and appealing pastel to medium blue tones, the greenish blue identity of this gem gives it versatility in design allowing it to read slightly warmer than a pure blue aquamarine while still maintaining a modern and sophisticated aesthetic, collectors who focus on investment quality will appreciate the stable enhancement and honest grading, the emerald cut further enhances the gem for bespoke settings because its elongated rectangular silhouette translates to elegant ring and pendant designs while the step facets preserve the stone character for display in a cabinet or a museum style collection, for those who intend to set the stone a shallow or low profile setting will protect the corners and show the table optimally, for investors and designers alike we recommend obtaining gem documentation when desired, The Natural Gemstone Company stands behind the gem history and condition, we provide high resolution imagery and can assist with custom mounting advice to ensure the stone performs to its fullest aesthetic and physical potential.