15.42 Ct. Yellowish Green Prasiolite from Madagascar

This exceptionally transparent 15.42 carat emerald cut prasiolite from Madagascar combines classical proportions with gemological integrity, dimensions 16.91 x 13.25 x 9.44 mm, emerald cut, medium color intensity, and an excellent polish. The stone has been evaluated as very slightly included at eye level, a clarity grade that means inclusions are minimal and do not distract from the overall appearance when mounted, which is an important consideration for an educated buyer assessing both beauty and practical wearability. Heat treatment has been applied to develop the attractive yellowish green hue, a standard and accepted enhancement for prasiolite that produces a stable, pleasing tone when performed correctly, and the Madagascar origin speaks to a reputable sourcing region for quartz varieties. The emerald cut is particularly valuable on a stone of this size because its broad step facets emphasize color uniformity and depth, allowing the moderately saturated yellowish green to present as both vivid and sophisticated in larger jewelry designs. The Natural Gemstone Company offers this gem with full disclosure of its treatment and grading, which supports informed purchasing decisions and collector confidence.

Under different lighting conditions this prasiolite exhibits distinct personalities, which is a desirable attribute for collectors and custom jewelers seeking versatility. In bright daylight the medium intensity color reads as fresh yellowish green with broad flashes across the table, the step cut producing a mirror like hall of light that accentuates the stone s transparency and internal clarity. Under cool LED lighting the stone displays crisper edge definition and a slightly greener appearance, while warmer incandescent or candlelight brings out the yellow undertones and yields a softer, more luminous glow. In diffused indoor lighting the emerald cut emphasizes depth, giving the gem an elegant, stable color presentation with subtle internal reflections rather than strong scintillation. Because the clarity grade is very slightly included, light passes cleanly through the pavilion creating clear depth without obvious windowing or dead zones. For longevity avoid prolonged exposure to excessive heat or harsh chemicals, and consider prong or partial bezel settings that allow light to enter the pavilion while protecting the corners, this balance preserves brilliance and highlights the gem s natural beauty.