10.01 Ct. Purple Amethyst from Brazil

This gem is a transparent, well proportioned 10.01 carat oval amethyst, with precise dimensions of 15.39 x 12.35 x 9.14 mm. The cutting style is faceted, executed as a mixed brilliant cut that marries a brilliant facet arrangement on the crown with a modified step approach on the pavilion, to maximize scintillation while preserving color saturation through the depth. The table is calibrated to balance face up presence with internal light return, and the girdle has been kept to a practical thickness to facilitate durable settings without compromising weight retention. Polish has been graded excellent, yielding crisp facet junctions and minimal surface conditions, and the stone is unenhanced, natural material from Brazil. Clarity is evaluated as eye clean at normal viewing distance, indicating that no inclusions are visible without magnification, which is a prized attribute in transparent amethyst specimens at this size.

Color characteristics are a central feature of this stone, exhibiting an intense purple hue with evenly distributed saturation, and a tone that sits squarely in that desirable medium deep range. Under mixed lighting the stone maintains a stable, vivid purple, with secondary violet overtones that enrich the visual depth. Color zoning is minimal and well controlled by the lapidary, avoiding large windows or areas of pale tone that commonly occur in larger amethyst rough. Compared to the majority of commercial amethyst, which often appears pale, washed, or shows noticeable zoning at similar sizes, this example stands out for its combination of high saturation and evenness. The intensity of color in a 10 carat, transparent amethyst, with no clarity disruptions and without any enhancement, is uncommon, increasing the stone value for collectors and designers seeking a statement gem that remains natural.

The mixed brilliant faceting is engineered for optical performance, with crown facets cut to generate vivid flashes and pavilion facets configured to control light leakage and extinction. The pavilion depth at 9.14 mm supports a strong face up color while preventing the common problem of windowing in larger amethyst ovals. The cutter has emphasized well proportioned facet angles to balance brilliance and saturation, producing a lively scintillation in movement while preserving a concentrated core of color in stationary viewing. The lack of visible inclusions at eye level means that the internal light paths remain largely unobstructed, allowing the stone to exhibit consistent contrast between facet reflections and the body color. These technical choices in cutting and finishing demonstrate advanced lapidary craftsmanship, and are especially important for quartz family gems where color distribution and optic return define perceived value.

Provenance from Brazil is noted, reflecting a source known for producing high quality amethyst with deep purple material. At The Natural Gemstone Company we document the no enhancement status, and offer this gem as a rare example of size and color fidelity in natural amethyst. For jewelers and collectors seeking a centerpiece stone for bezel or prong settings, this 15.39 x 12.35 mm oval provides strong face up presence and practical dimensions for rings, pendants, or bespoke creations. The Mohs hardness of quartz provides reliable wearability for daily jewelry when properly set, and the excellent polish reduces the need for immediate finishing work upon setting. Given the scarcity of eye clean, intensely colored, unenhanced amethyst at this 10.01 carat scale, this specimen represents a compelling acquisition, whether for investment grade collections or for design projects that call for a natural, deeply saturated purple focal stone.