4.97 Ct. Purple Amethyst from Brazil

This listing presents a single transparent 4.97 carat oval amethyst, precisely measured at 12.02 by 10.14 by 7.24 millimeters, offered by The Natural Gemstone Company. The gem is faceted with a mixed brilliant cutting style, and it displays intense purple saturation that is evenly distributed across the entire table and pavilion. Clarity is graded as eye clean when evaluated at standard viewing distance, indicating an absence of any inclusions that affect the visual performance under normal inspection. The finish is described as excellent polish, with facet junctions that reflect light with crispness and minimal surface disturbance, and the specimen is natural with no enhancement, an important attribute for collectors and connoisseurs who prioritize untreated material. Origin is Brazil, a provenance that carries both gemological and market significance, and the combination of weight, transparency, cut quality, and origin positions this piece as a premium amethyst for precision jewelry work or investment grade collections.

From a lapidary and optical perspective the mixed brilliant cut employed on this oval is a deliberate choice to balance color saturation and light return. The cutting approach typically places a brilliant facet arrangement on the crown to maximize scintillation and liveliness, while the pavilion geometry is configured to optimize color retention and depth, producing a lively interplay between brilliance and hue. The length to width ratio for this oval is approximately 1.18 to 1, a proportion that reads as an elegant classic oval, neither overly elongated nor squat, which maintains face up color and allows versatile setting options. The measured depth of 7.24 millimeters yields a depth to average diameter ratio of about 65.3 percent, a proportion that supports strong light return without excessive windowing or a dark center, and demonstrates thoughtful cutting decisions by the lapidary to preserve both carat weight and visual performance. Edge symmetry and facet alignment are particularly important in mixed cuts, and this stone exhibits precise facet junctions that contribute to its excellent polish rating and to predictable light behavior across multiple viewing angles.

Color and clarity attributes are central to the value proposition of this Brazilian amethyst, and the stone exhibits intense color intensity with a pure, saturated purple that leans neither overly red nor overly blue when viewed under neutral daylight conditions. The eye clean clarity ensures that internal features do not interrupt the color field or create distraction, allowing the rich tone to communicate without obstruction. Brazilian amethysts are renowned for their stable, saturated purples derived from hydrothermal and pegmatitic formations, often yielding crystals with minimal color zoning and consistent tone, and the provenance from Brazil therefore adds measurable premium to the stone compared with more common sources. The absence of heat treatment or irradiation, confirmed by no enhancement disclosure, further enhances market desirability because untreated Brazilian material is sought after for both ethical sourcing considerations and for its unaltered crystal chemistry that assures collectors of authenticity and stability. Gemological examination of this piece reveals clean pleochroic behavior, with color variation limited to slight shifts from medium to slightly deeper purple as the stone is rotated, a behavior consistent with natural amethyst and contributing to its three dimensional color depth.

For practical use and design integration this oval amethyst is well suited to a range of high quality settings including classic four prong solitaires, low profile bezels that protect the girdle while showcasing the table, or halo designs that amplify perceived size and enhance visual fire. The gem’s dimensions and stable depth percentage make it reliable for standard oval mounting templates, and the eye clean clarity reduces the need for protective settings that would otherwise be required for included material. With a Mohs hardness that supports everyday wear when set correctly, the stone remains appropriate for rings, pendants, and statement earrings when combined with secure mounting and periodic maintenance. The Natural Gemstone Company provides provenance documentation and can advise on matching metal choices and mounting techniques that preserve the stone’s polish and brilliance, and we offer custom setting services to meet exacting design specifications. For buyers seeking technical assurance, our listings include detailed measurements and cutting notes to facilitate confident selection, and the Brazilian origin combined with the natural, untreated state, meticulous mixed brilliant faceting, eye clean clarity, and excellent polish makes this 4.97 carat oval purple amethyst a technically refined and commercially attractive acquisition.