4.36 Ct. Brownish Green Zircon from Ceylon (Sri Lanka)

This listing describes a single, natural, transparent zircon from Ceylon, weighing 4.36 carats, presented in a cushion shape with exact dimensions of 10.73 by 7.58 by 4.88 millimeters. The gem exhibits an intense brownish green hue with strong saturation, and a clarity grade of very slightly included as evaluated at eye level, indicating only minor internal features that do not compromise transparency or overall appearance. The cutting style is a mixed brilliant cut, combining facets designed for both broad flash and scintillation, and the stone has been finished with an excellent polish. There has been no enhancement applied to this material, confirming its natural state and verified origin from Sri Lanka. This description is provided by The Natural Gemstone Company, reflecting measured dimensions and observed optical characteristics under standard viewing conditions.

The cushion outline and the mixed brilliant faceting have been executed to maximize light performance, the geometric arrangement of crown and pavilion facets directs incident light into multiple internal reflections, producing a balanced display of brilliance and scintillation. The pavilion depth and facet angles, in combination with a well defined girdle and table, yield efficient return of light to the observer, while the mixed facet pattern introduces both larger pulses of light and numerous small flashes, enhancing perceived fire and motion without sacrificing face up color. The measured depth is approximately 53 percent relative to the average of the length and width, a proportion that preserves weight while maintaining optimal optical behavior. Excellent surface polish ensures minimal light leakage and crisp facet junctions, allowing color zoning and internal features to remain subtle and non disruptive. For practical use, the stone’s size and proportions make it suitable for a variety of settings where the cushion outline and lively faceting can be displayed, including solitaire and halo designs, with the robust color and clarity offering predictable performance under mixed lighting. The Natural Gemstone Company provides this detailed technical summary to assist gemologists, designers, and informed buyers in assessing the gem’s optical and material qualities.