11.36 Ct. Ametrine from Bolivia

At The Natural Gemstone Company we present not merely a gem, but a singular opportunity to own a piece of the earth that feels bespoke, exclusive, and inherently rare, a stone reserved for those who seek distinction. This specimen is an extraordinary transparent 11.36 carat asscher octagon bi color ametrine, presented with precise dimensions of 14.01 x 13.81 x 9.11 mm, each measurement declaring its substantial presence. The asscher cut, known for its step facets and luminous hall of mirrors effect, has been executed with exceptional skill, producing an optical depth that elevates both the purple and golden zones of the ametrine with equal authority. Its clarity grade, evaluated at eye level as eye clean, permits an unobstructed parade of internal fire and facet reflections, while the intense color intensity and excellent polish complete a presentation that feels refined, rare, and intentionally curated. Heat treated for enhanced color stabilization, and sourced from Bolivia, this ametrine carries provenance that collectors immediately recognize, a narrative of place and craftsmanship that enhances its exclusivity.

Viewing this gem is an experience that calls to mind the presence of history, while asserting its own, modern identity. The dual personality of ametrine, where amethyst purple and citrine gold exist within a single crystal, evokes the drama of Alexandrite, famous for its color change, yet here the effect is simultaneous, a natural kingdom of two hues cohabiting in perfect balance. One thinks of the deep, storied blues of the Logan Sapphire for clarity, or the monumental presence of the Cullinan in sheer scale, and yet this ametrine occupies a rarified niche where color dynamics and cut converge. The asscher cut gives it a geometric authority reminiscent of the Sancy and its elegant presence in historical crowns, but rather than a single tone it offers a living contrast that plays across every facet. In size, at 11.36 carat, it stands above the common offerings of ametrine, placing it into a category where collectors who appreciate both gemstone history and rarity will immediately recognize its significance, a jewel that feels as though it belongs in a private cabinet of curiosities, rather than on a standard showroom shelf.

The Bolivian origin of this ametrine is a central part of its story, a provenance that echoes the small number of mines capable of yielding such exceptional bi color material. Ametrine from Bolivia is associated with the Anahi region, a locality that has produced some of the most sought after examples in the gem world, and that geographic specificity adds to the gemological and emotional appeal. Heat treatment, disclosed and commonplace, has been applied with the intent to stabilize and intensify the natural zoning, an enhancement that is both accepted and respected among connoisseurs when properly disclosed, as it preserves the integrity of the crystal while amplifying its visual drama. The excellent polish and the asscher cut are further testimony to meticulous lapidary work, a human hand refining what nature began, much like the masterful cuts applied to legendary stones through history. For the discerning buyer, this combination of provenance, thoughtful enhancement, and artisanal finishing transforms the piece from a mere mineral into a collectible work of art, one that resonates with the same reverence afforded historic gems that have survived centuries within royal collections.

Owning this 11.36 carat Bolivian asscher octagon bi color ametrine from The Natural Gemstone Company places you among a select circle of collectors and connoisseurs who value rarity, narrative, and aesthetic complexity. This is a gem designed to be set as a centerpiece, to be commissioned into a one of a kind mount that respects its duality, and to be worn or housed with the care reserved for singular objects. It is suited to bespoke creations, from modern architectural rings to vintage inspired pendant settings, each option allowing the purple and golden tones to converse under light in a way few gemstones can replicate. Availability at this size, clarity, and quality is limited, and once a gem like this is placed into a bespoke setting it departs the market of loose rarities forever, held instead as part of a private trove. Should you wish to proceed, The Natural Gemstone Company will provide certificate grade documentation, high resolution imaging, and personalized guidance on settings that will best showcase the asscher cut and the dramatic bi color display, ensuring that the final piece is as exclusive and intentional as the gem itself. This is an invitation to claim an heirloom quality stone, to join an elite few who recognize and possess the rare intersection of color, cut, clarity, and origin, a jewel that will tell your story as much as it tells the mineralogical story of the earth.