17.34 Ct. Purple Amethyst from Brazil

This transparent cushion shaped amethyst weighs 17.34 carats and measures 16.40 by 16.14 by 9.56 millimeters, presenting a substantial and well balanced profile for a single stone setting. The gem is faceted to a mixed brilliant scheme, combining step elements with brilliant facets to maximize both depth and scintillation. Color is intense and uniformly distributed, contributing to a rich purple presentation that reads with immediate presence both face up and when viewed from the pavilion. Clarity is graded eye clean when evaluated at normal viewing distance, and the polish is excellent, resulting in sharp facet junctions and crisp light return. Origin is Brazil, enhancement is none, and the overall execution speaks to careful material selection and expert lapidary work from The Natural Gemstone Company.

Under magnification this specimen reveals the subtle internal architecture that gives it an unmistakable natural signature, while remaining visually clean to the unaided eye. Fine growth zoning is evident as delicate, parallel banding following the crystal morphology, producing gentle shifts in tone that enhance perceived depth rather than creating disruptive contrast. Scattered, very small two phase inclusions are observed as minute, rounded features that can contain both microscopic fluid and vapor, and these act as tiny light collectors contributing to a soft internal scintillation under changing angles. There are also isolated, minute mineral traces preserved within the crystal lattice, consistent with natural formation in hydrothermal and geode environments, and these occupy only a minute portion of volume and do not impact transparency. A network of tightly healed fissures appears at high magnification, their healed surfaces producing subtle silk like diffusion that moderates highlights and imparts a velvety saturation to the purple. Collectively these features are diagnostic of natural Brazilian amethyst, providing a fingerprint of growth and history rather than detracting from the gem s clarity or brilliance.

The interplay of these internal characteristics with the mixed brilliant cutting strategy gives this stone its distinctive presence, combining strong face up color with a lively but controlled internal glow. The cutter s choice to preserve natural zoning and to align major facets with growth planes optimizes color distribution and minimizes any potential windowing, preserving the gem s 17.34 carat visual impact. Because there has been no enhancement, the color and internal features are intrinsic to the material, making this amethyst a reliable choice for both collectors and fine jewelry applications where natural authenticity is a priority. The excellent polish and precise facet geometry also simplify setting considerations, allowing the gem to be shown off in open or semi bezel mountings while maintaining resistance to surface abrasion. For those requiring verification, magnified images and microscopic reports are available, and our gemological notes document the characteristic growth zoning, minute two phase inclusions, and healed features that serve as identifying markers. The Natural Gemstone Company stands behind the stated origin and no enhancement claim, and we are available to provide additional photographic detail or technical commentary on the microscopic features for technical buyers or designers contemplating a bespoke mounting.