13.98 Ct. Ametrine from Brazil

This transparent 13.98 carat cushion shaped bi color ametrine presents a balanced marriage of amethyst purple and citrine gold, dimensions 17.65 x 13.05 x 9.29 mm, checkerboard cut, clarity grade very very slightly included when evaluated at eye level, medium intense color intensity, excellent polish, heat treated, origin Brazil. The Natural Gemstone Company describes this stone as an example of material that combines generous carat weight with controlled color zoning, offering a broad face up presentation and substantial depth for light transmission. The cushion outline provides softened corners that complement the checkerboard facet arrangement, while the proportions and depth produce an optical volume that is both lively and consistent. The disclosed heat treatment is a stable and accepted enhancement that refines hue saturation and uniformity without compromising the stone structure, and the Brazilian origin is consistent with classic occurrences of gem quality ametrine.

The gemological attributes of this ametrine are central to how its flawless quality enhances beauty from every angle. The very very slightly included clarity grade indicates inclusions are minimal in size and number, positioned so they do not interrupt transparency or break the path of light through the pavilion, therefore the stone reads as essentially eye clean in typical viewing. The checkerboard cut amplifies surface facet play, creating repeated reflections that animate the division of color across the crown, while the internal facet geometry allows for interleaving flashes of purple and gold as the gem is rotated. Excellent polish sharpens each facet plane and junction, improving contrast and increasing scintillation, the crisp edges of the facets act as mirrors that maintain bright returns even in softer lighting. The cushion profile, combined with a measured depth of 9.29 mm, offers a pleasing balance between brilliance and body color, the larger table area emphasizes the bi color character, and the surrounding facets distribute light so that both hues are visible from multiple orientations.

In practical terms the combination of transparency, precision cutting, and superior polish makes this ametrine adaptable to a range of fine jewelry settings where the stone is expected to be the visual anchor. Set as a solitaire in a ring or as the central element of a pendant, the gem will display dynamic color separation as the wearer moves, the clean interior permitting strong light return and lively internal flashes, and the checkerboard crown will add a glimmering texture that reads as high end craftsmanship. The disclosed heat treatment ensures stable intensity and predictable behavior under varied lighting, while the modest presence of very very slight inclusions reinforces the natural origin and character of the piece without diminishing its presentation. The Natural Gemstone Company provides full description and provenance information for this stone, and the documented attributes support confident selection for bespoke settings or for collectors seeking a high quality, visually expressive bi color ametrine.