6.42 Ct. Ametrine from Ceylon (Sri Lanka)

One beautiful transparent 6.42 carat oval shape bi color ametrine from The Natural Gemstone Company is a remarkable example of balance between size and refinement, weighing 6.42 carat with measurements of 13.97 x 11.69 x 7.24 mm, cut in a mixed brilliant style and finished to an excellent polish. This stone displays a medium light color intensity that allows both the citrine gold and amethyst purple tones to appear distinct yet harmonious, and it carries a clarity grade of very very slightly included when evaluated at eye level, which means it is visually clean to most observers. The gem has received a stable heat treatment enhancement, a common and accepted practice that enhances color while maintaining durability, and its origin is Ceylon Sri Lanka, a provenance that adds an intriguing layer of rarity and character when compared to more commonly sourced ametrines. The overall presentation is one of high transparency and lively sparkle, qualities that set this piece apart from many mass market options.

When compared to other market offerings this Ceylon ametrine stands out for a combination of attributes that are rarely found together in a single stone. Many ametrines on the market are smaller, show weaker color contrast, or are cut in simple shapes that sacrifice brilliance for yield, however this 6.42 carat oval delivers generous presence without compromising on light performance because of its mixed brilliant cut. The clarity grade of very very slightly included at eye level places it above many commercial stones that show obvious inclusions without magnification, and the excellent polish ensures that light travels through the gem with minimal obstruction, producing superior scintillation. Origin matters in collector circles, and while Bolivian ametrine is well known, a Ceylon origin is less common and can convey provenance appeal, making this gem a more distinctive choice for a buyer seeking something different from the usual supply. The heat treatment applied is a standard enhancement that improves color saturation in a controlled way, offering great visual appeal and long term stability, which translates into better value for everyday wear compared with untreated but poorly colored stones that may require more careful handling and may not look as lively.

This ametrine is particularly notable for the way it interacts with different lighting conditions, a factor that determines how a gem will look day to day and in special occasions. In bright daylight the medium light intensity allows both the golden yellow and muted purple zones to read clearly, with the mixed brilliant facets throwing flashes of white sparkle that accentuate the bicolor effect, the oval outline lending elegance while the depth of 7.24 mm provides a pleasing face up presence. Under warm incandescent or halogen light the citrine tones warm up and take on a richer golden hue, while the purple areas deepen subtly, creating a cozy, glowing look ideal for evening wear. Modern cool white LED lighting will emphasize clarity and crisp facet reflections, making the stone appear more lively and transparent, and candlelight will give it a romantic, softer appearance with the golden areas becoming luminous and the purple areas appearing more muted, an effect that many people find appealing for evening jewelry. Because the gem is cut to maximize both brilliance and color separation, movement of the hand reveals an engaging play between flashes of color and bright scintillation, so the wearer experiences a continuously changing appearance rather than a static look.

For jewelers and buyers seeking strong value and a unique statement piece this ametrine offers a compelling package that outperforms many alternatives on the market. Its generous 6.42 carat weight combined with the oval proportions of 13.97 x 11.69 x 7.24 mm make it ideal for a prominent ring or a focal pendant, and the very very slightly included clarity and excellent polish mean fewer surprises when setting the stone and better longevity in daily wear. The mixed brilliant cut gives more fire than a step cut while preserving depth and face up size, so this gem will look larger and more lively than many stones of comparable weight cut for maximum yield. The Ceylon origin and heat treatment create a distinctive aesthetic and predictable color stability, a combination that appeals to both collectors and those buying for special commissions. At The Natural Gemstone Company we curate pieces that combine aesthetic beauty with technical quality, and this ametrine exemplifies that commitment, offering a unique bi color presence and dependable performance, which together make it an excellent choice for a buyer who wants something rare, wearable, and visually exciting.