2.65 Ct. Yellow Zircon from Ceylon (Sri Lanka)

This transparent yellow zircon presented by The Natural Gemstone Company is a finely balanced oval, weighing 2.65 carats, with exact dimensions of 8.77 by 6.94 by 4.36 millimeters. The gem is fashioned in a mixed brilliant cut, combining a brilliant style crown with a modified pavilion, to optimize both scintillation and spectral dispersion. Clarity is graded as eye clean when evaluated at eye level, permitting unobstructed visual access to internal reflections and fire. Color intensity is described as intense, a saturated yellow hue that remains energetic face up without appearing overly dark under strong light. The polish is excellent, producing sharp facet junctions and mirror like facet planes that contribute to strong light return. Enhancement status is none, confirming the stone is natural and untreated. The origin of this specimen is Ceylon Sri Lanka, a source historically renowned for producing zircons with pure crystalline development and stable optical properties.

The story of formation for this zircon begins deep within the Earths crust, over millions of years, where zircon crystallized from silica rich melts or persisted through high grade metamorphism. Zircon is a hardy accessory mineral, chemically robust and resistant to weathering, and this specimen records a long geological history. During slow cooling in an igneous body or in a metamorphic terrain, zircon crystals incorporate trace elements and occasionally accumulate natural radiation damage. The intense yellow color of this stone is the outcome of trace element substitutions and the natural thermal and radiation history that created stable color centers, rather than any post mining treatment. Over geologic time the crystal was liberated from its host rock by erosion and transported to placer or residual deposits in Ceylon Sri Lanka, where skilled miners recovered the gem rough that would later be examined and cut for maximum beauty.

From a lapidary perspective the mixed brilliant cut of this oval is engineered to deliver both brilliance and directional flashes of fire, while preserving weight and strong color saturation. The measured depth of 4.36 millimeters corresponds to a depth ratio of approximately 55.6 percent relative to the average diameter, a proportion that supports robust face up brightness and balanced light leakage. The crown is configured with a well centered table and carefully aligned star and kite facets to generate uniform scintillation when the gem is viewed under natural and artificial light. The pavilion is modified to control leakage and to enhance dispersion, with facet angles calibrated to zircon optic properties to generate high contrast flashes without compromising color. The girdle has been finished to an even profile, supporting secure setting options and consistent retention of the cut profile. The excellent polish further defines crisp facet boundaries and enhances the appearance of clarity and saturation, allowing the eye clean grade to read transparently under loupe free observation.

As an item offered by The Natural Gemstone Company this untreated yellow zircon is presented with technical transparency and gemological integrity, suitable for collectors and connoisseurs who require precise data and natural provenance. Its 2.65 carat weight and oval outline make it well suited to both classic prong mounted rings and low bezel settings that emphasize the central table and crown pattern. For jewelry use a setting that permits light penetration through the pavilion is recommended to maximize dispersion and scintillation, while periodic gentle cleaning with warm soapy water will preserve polish and brilliance. We attest to its natural origin and lack of enhancement, and we welcome requests for additional measurements or viewing under specific illumination conditions. This zircon is an exemplar of Ceylon crystalline heritage, a marriage of geological time and technical cutting skill, ready to be set into a piece that will display its intense yellow radiance for generations.