48.34 Ct. Bi Color Ametrine from Brazil

This exceptional transparent 48.34 carat fancy shape bi color ametrine measures 27.98 x 18.70 x 13.72 mm, and it exemplifies precision cutting and natural color interplay, produced without enhancement at origin in Brazil. The cutting style is faceted, executed in a mixed brilliant cut to marry the scintillation of brilliant facets with the color contrast control of step influenced planes, the crown and pavilion geometry optimized to balance brilliance and color separation. Clarity is evaluated as eye clean at standard viewing distances, the pavilion depth and crown heights calibrated to avoid windowing, while facet junctions and symmetry are finished to an excellent polish, producing crisp facet reflections and strong light return. The bi color transition is vivid in intensity, with saturated amethyst purple and warm citrine yellow occupying distinct zones but interacting dynamically under light, the cutter oriented the rough so that the color boundary traverses the table for maximum visual impact, enhancing the perceived size and depth of field. The girdle consistency, crown angles, and pavilion facets were executed to minimize extinction while preserving the stone weight, creating a presentation that appeals to connoisseurs who demand technical excellence and natural provenance.

From the Brazilian deposit to your hands, the journey of this ametrine reflects rigorous selection and artisanal skill, The Natural Gemstone Company sources parcels directly from reputable miners who sort material by color zoning and crystal habit, the chosen crystal displayed optimal bi color zoning and internal clarity that justified retaining its substantial carat weight rather than dividing the rough. Preforming was conducted under magnification to map internal growth patterns, inclusions, and color boundaries, then handed to a master cutter who employed mixed brilliant faceting to emphasize both fire and the dramatic amethyst citrine dichroism. Post cut, the gem underwent meticulous hand polishing on progressively finer laps to achieve the excellent polish grade and final inspection under controlled lighting to confirm vivid color intensity and eye clean clarity. The final gem is accompanied by internal documentation of origin and treatment status, and it is presented by The Natural Gemstone Company with the technical dossier that details dimensions, weight, cutting style, clarity assessment, and confirmation of no enhancement, making this ametrine an ideal choice for collectors and designers seeking a technically superior, naturally formed, and transparently sourced statement gem.