11.87 Ct. Purple Amethyst from Madagascar

This 11.87 carat round amethyst presents a precise balance of proportions and cutting artistry, measured at 15.31 x 15.49 x 9.77 mm, with a depth to diameter ratio of approximately 0.634, a dimension that optimizes light return for a mixed brilliant cut. The mixed brilliant design combines a traditional brilliant facet arrangement on the crown with a modified pavilion to enhance scintillation, the crown facets arranged to form a well centered table and the pavilion facets faceted to control light leakage while preserving strong internal flash. Symmetry is intentionally tight, with facet junctions and girdle continuity executed to minimize light leakage and to enable predictable optical performance within a variety of mounting styles. Clarity is graded as eye clean, evaluated at eye level under standard viewing conditions, which means no inclusions are visible to the unaided eye and the broad, even facets deliver unobstructed pathways for light. The polish is excellent across the entire facet suite, providing mirror like facet surfaces that increase specular reflection and ensure crisp facet windowing that is especially important in larger sizes such as this one.

Color is the defining attribute of this specimen, classified as intense in color intensity, exhibiting a saturated, vivid purple hue with a cool to neutral tonal balance that reads as vibrant across different lighting environments. The color distribution is even across the crown and pavilion, which allows the stone to project a consistent color field when set, and the mixed brilliant faceting enhances color saturation through controlled light return and internal contrast, producing deep purple flashes balanced by lighter violet highlights at facet junctions. In a jewelry setting the stone will stand out both by saturation and by the dynamic interplay of light and color, presenting a strong visual impact in solitaire ring applications, center stones for pendants, and as the focal point in multi stone compositions. When mounted in white metals the intense purple will appear crisp and vivid, when mounted in warm yellow or rose metals the purple will create a lively color contrast that emphasizes saturation, and in open bezel and prong settings the high polish and eye clean clarity will allow maximum presence and sparkle.

Craftsmanship and provenance are equally important, this amethyst originates in Madagascar and is presented with no enhancement, a natural material delivered in its unmodified state to preserve inherent color and durability. The combination of natural origin, absence of heat or irradiation treatments, and the exacting mixed brilliant cutting approach results in a gem that is both technically refined and visually commanding, offering designers and connoisseurs a reliable optical profile for precision settings. For gem setters the predictable pavilion depth, excellent polish, and eye clean clarity reduce the need for concealing design measures, allowing straightforward prong, bezel, and halo constructions with minimal risk of unexpected light absorption or unwanted dark areas. The Natural Gemstone Company stands behind the grading, and our photographs and measurements are provided to support informed selection and to assist in design planning for custom pieces, ensuring that this 11.87 carat Madagascan amethyst will translate into a striking and enduring centerpiece in any jewelry setting.