19.24 Ct. Bi Color Ametrine from Ceylon (Sri Lanka)

This transparent bi color ametrine presents as a substantial and well balanced gem, weighing 19.24 carat, with measured dimensions of 18.99 x 13.18 x 11.92 mm, and executed in a radiant shape. The cutting follows the radiant template with stepped and brilliant facets that optimize light return, and the piece displays an excellent polish that sharpens facet junctions and increases overall brilliance. Clarity is graded as eye clean when evaluated at eye level, allowing the stone to read with clarity and depth without distracting inclusions. Color intensity is described as intense, with distinct citrine derived golden yellow tones transitioning to amethyst derived purplish tones, producing a clear and attractive bi color effect that is visible from multiple viewing angles. There is no enhancement, and the stone is reported as natural in color and condition, with origin attributed to Ceylon, Sri Lanka, a provenance that further distinguishes this specimen from many other ametrines on the market.

The combination of size and color in this ametrine is its most notable attribute when considered against similar options. Ametrine of gem quality frequently appears in smaller sizes, and strong, evenly distributed bi color zoning at this weight is comparatively uncommon. At 19.24 carat the stone occupies a scale that moves it into collector grade territory for this species, and the intensity of each color component maintains saturation without apparent fading across the girdle and crown. The radiant cut contributes to the perception of size by concentrating color and opening the table for a broad face up presentation, while the proportional depth of 11.92 mm preserves durability for a center stone application. Origin from Ceylon, Sri Lanka adds an additional layer of rarity, since most historically noted ametrine sources are geographically limited, and Sri Lankan material with such size and strong bi color contrast is encountered infrequently. For buyers and designers seeking a piece that departs from the more common small to medium ametrines, this specimen offers a distinctive and verifiable alternative.

From a practical and design perspective the gem offers several clear advantages. The radiant shape and eye clean clarity permit flexible mounting choices for rings, pendants, or bespoke statement pieces, and the large face up area delivers immediate visual impact without sacrificing the subtleties of the bi color interplay. The excellent polish and facet symmetry promote lively light performance under varied lighting conditions, enabling the citrine and amethyst tones to alternately dominate as the stone is viewed or moved. Because the stone has no enhancement recorded, routine care recommendations are standard for transparent quartz family gems, including limiting exposure to strong chemicals and extreme heat, and avoiding harsh mechanical abrasion, while noting that professional inspections and cleaning will preserve its finish and setting security. The Natural Gemstone Company provides examination details and can supply additional imagery under different lighting angles, measured documentation, and recommended mounting orientations to best display the bi color axis. This ametrine represents a rare convergence of scale, color intensity, and provenance, suitable for a collector grade commission or a high significance design where distinction and natural authenticity are primary considerations.