19.97 Ct. Yellow Zircon from Ceylon (Sri Lanka)

This 19.97 carat cushion shaped yellow zircon presents a rare combination of weight, transparency, and color saturation, attributes that are carefully documented and evaluated by The Natural Gemstone Company. The stone measures 15.29 x 12.30 x 9.51 mm, dimensions that reflect a substantial table and well balanced depth, and it is faceted in a mixed brilliant cutting style to optimize both brilliance and fire. Clarity is graded as eye clean at eye level, indicating that the stone is free of visible inclusions to normal unaided observation, and the polish is excellent, producing crisp facet junctions and lively surface reflections. Color intensity is described as intense, a term used to convey a strong saturation of warm yellow that remains even under varied lighting, and the piece has undergone a routine and stable heat treatment which enhances hue and uniformity without compromising the natural structure of the crystal. Origin is Ceylon Sri Lanka, and that provenance is a defining characteristic in the assessment of this zircon, combining geological pedigree with a long history of skilled lapidary work in the region.

The mixed brilliant cut is chosen for its ability to balance scintillation with broad flash and internal fire, producing a visual performance that is both dynamic and refined. In a stone of this size the cutter has needed to negotiate weight retention with optimal light return, and the result is a pavilion and crown architecture that support strong dispersion while maintaining a well proportioned outline. Faceting precision and excellent polish contribute to the gem exhibiting clean optical windows and crisp internal reflections, which in turn accentuate the stone s natural brilliance. The cushion outline complements the mixed brilliant facet arrangement by softening the profile and creating larger flashes of light across the table, while the pavilion facets break light into spectral flashes that are a hallmark of high quality zircon. The combination of a transparent body, intense color, and a well executed mixed brilliant cut makes this specimen suitable for display or for a fine jewelry commission where the stone s optical performance will be a focal point.

The origin of this zircon in Ceylon Sri Lanka adds distinct value that is both tangible and intangible, rooted in geology and longstanding gemological tradition. Sri Lanka has produced notable zircons for centuries, and areas such as Ratnapura are renowned for alluvial deposits that yield stones with vivid coloration and excellent crystal form. Provenance from Sri Lanka signals to collectors and connoisseurs that the material originates from an established gem producing environment where specific geological conditions favor the formation of high clarity, intensely colored zircons. Beyond geology, the cultural and historical context imparts provenance value, because Ceylon gemstones have been traded and prized by markets around the world for generations, and that lineage contributes to market recognition and desirability. For those who assess value by origin the Ceylon provenance supports premium valuation, and for those focused on gemological quality the documented source provides a reliable context for the stone s observed characteristics.

Practical considerations for this 19.97 carat zircon are straightforward and should guide both design choices and long term care. The heat treatment disclosed is a common and accepted enhancement for zircon, performed to stabilize and intensify natural color, and when properly applied it is permanent under normal conditions of wear. Given the relative sensitivity of zircon to thermal shock and mechanical impact compared with harder gem species, thoughtful mounting and protective settings are advisable, and this weight and size are particularly well suited to a pendant or a collar piece where impact risk is minimized. The Natural Gemstone Company provides full disclosure of treatment and origin, and we can assist with independent certification and setting recommendations to preserve both beauty and value. This specimen represents a significant example of Sri Lankan zircon, combining notable carat weight, a refined mixed brilliant faceting, intense yellow coloration, eye clean clarity, and an excellent polish, qualities that together make it a compelling choice for collectors or bespoke jewelry projects.